diff --git a/static/bootstrap-4.3.1-dist/js/bootstrap.bundle.min.js b/static/bootstrap-4.3.1-dist/js/bootstrap.bundle.min.js
new file mode 100644
index 0000000..4320368
--- /dev/null
+++ b/static/bootstrap-4.3.1-dist/js/bootstrap.bundle.min.js
@@ -0,0 +1,7 @@
+/*!
+  * Bootstrap v4.3.1 (https://getbootstrap.com/)
+  * Copyright 2011-2019 The Bootstrap Authors (https://github.com/twbs/bootstrap/graphs/contributors)
+  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
+  */
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t.attributes=Qt({},L,t.attributes),t.styles=Qt({},C,t.styles),t.arrowStyles=Qt({},t.offsets.arrow,t.arrowStyles),t},gpuAcceleration:!0,x:"bottom",y:"right"},applyStyle:{order:900,enabled:!0,fn:function(t){var e,n;return he(t.instance.popper,t.styles),e=t.instance.popper,n=t.attributes,Object.keys(n).forEach(function(t){!1!==n[t]?e.setAttribute(t,n[t]):e.removeAttribute(t)}),t.arrowElement&&Object.keys(t.arrowStyles).length&&he(t.arrowElement,t.arrowStyles),t},onLoad:function(t,e,n,i,o){var r=Jt(o,e,t,n.positionFixed),s=$t(n.placement,r,e,t,n.modifiers.flip.boundariesElement,n.modifiers.flip.padding);return e.setAttribute("x-placement",s),he(e,{position:n.positionFixed?"fixed":"absolute"}),n},gpuAcceleration:void 0}}},be=function(){function r(t,e){var n=this,i=2<arguments.length&&void 0!==arguments[2]?arguments[2]:{};!function(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}(this,r),this.scheduleUpdate=function(){return requestAnimationFrame(n.update)},this.update=At(this.update.bind(this)),this.options=Qt({},r.Defaults,i),this.state={isDestroyed:!1,isCreated:!1,scrollParents:[]},this.reference=t&&t.jquery?t[0]:t,this.popper=e&&e.jquery?e[0]:e,this.options.modifiers={},Object.keys(Qt({},r.Defaults.modifiers,i.modifiers)).forEach(function(t){n.options.modifiers[t]=Qt({},r.Defaults.modifiers[t]||{},i.modifiers?i.modifiers[t]:{})}),this.modifiers=Object.keys(this.options.modifiers).map(function(t){return Qt({name:t},n.options.modifiers[t])}).sort(function(t,e){return t.order-e.order}),this.modifiers.forEach(function(t){t.enabled&&Ot(t.onLoad)&&t.onLoad(n.reference,n.popper,n.options,t,n.state)}),this.update();var o=this.options.eventsEnabled;o&&this.enableEventListeners(),this.state.eventsEnabled=o}return qt(r,[{key:"update",value:function(){return function(){if(!this.state.isDestroyed){var t={instance:this,styles:{},arrowStyles:{},attributes:{},flipped:!1,offsets:{}};t.offsets.reference=Jt(this.state,this.popper,this.reference,this.options.positionFixed),t.placement=$t(this.options.placement,t.offsets.reference,this.popper,this.reference,this.options.modifiers.flip.boundariesElement,this.options.modifiers.flip.padding),t.originalPlacement=t.placement,t.positionFixed=this.options.positionFixed,t.offsets.popper=ee(this.popper,t.offsets.reference,t.placement),t.offsets.popper.position=this.options.positionFixed?"fixed":"absolute",t=ie(this.modifiers,t),this.state.isCreated?this.options.onUpdate(t):(this.state.isCreated=!0,this.options.onCreate(t))}}.call(this)}},{key:"destroy",value:function(){return function(){return this.state.isDestroyed=!0,oe(this.modifiers,"applyStyle")&&(this.popper.removeAttribute("x-placement"),this.popper.style.position="",this.popper.style.top="",this.popper.style.left="",this.popper.style.right="",this.popper.style.bottom="",this.popper.style.willChange="",this.popper.style[re("transform")]=""),this.disableEventListeners(),this.options.removeOnDestroy&&this.popper.parentNode.removeChild(this.popper),this}.call(this)}},{key:"enableEventListeners",value:function(){return function(){this.state.eventsEnabled||(this.state=ae(this.reference,this.options,this.state,this.scheduleUpdate))}.call(this)}},{key:"disableEventListeners",value:function(){return le.call(this)}}]),r}();be.Utils=("undefined"!=typeof window?window:global).PopperUtils,be.placements=de,be.Defaults=Ee;var we="dropdown",Ce="bs.dropdown",Te="."+Ce,Se=".data-api",De=p.fn[we],Ie=new RegExp("38|40|27"),Ae={HIDE:"hide"+Te,HIDDEN:"hidden"+Te,SHOW:"show"+Te,SHOWN:"shown"+Te,CLICK:"click"+Te,CLICK_DATA_API:"click"+Te+Se,KEYDOWN_DATA_API:"keydown"+Te+Se,KEYUP_DATA_API:"keyup"+Te+Se},Oe="disabled",Ne="show",ke="dropup",Le="dropright",xe="dropleft",Pe="dropdown-menu-right",He="position-static",je='[data-toggle="dropdown"]',Re=".dropdown form",Fe=".dropdown-menu",Me=".navbar-nav",We=".dropdown-menu .dropdown-item:not(.disabled):not(:disabled)",Ue="top-start",Be="top-end",qe="bottom-start",Ke="bottom-end",Qe="right-start",Ve="left-start",Ye={offset:0,flip:!0,boundary:"scrollParent",reference:"toggle",display:"dynamic"},ze={offset:"(number|string|function)",flip:"boolean",boundary:"(string|element)",reference:"(string|element)",display:"string"},Xe=function(){function c(t,e){this._element=t,this._popper=null,this._config=this._getConfig(e),this._menu=this._getMenuElement(),this._inNavbar=this._detectNavbar(),this._addEventListeners()}var t=c.prototype;return t.toggle=function(){if(!this._element.disabled&&!p(this._element).hasClass(Oe)){var t=c._getParentFromElement(this._element),e=p(this._menu).hasClass(Ne);if(c._clearMenus(),!e){var n={relatedTarget:this._element},i=p.Event(Ae.SHOW,n);if(p(t).trigger(i),!i.isDefaultPrevented()){if(!this._inNavbar){if("undefined"==typeof be)throw new TypeError("Bootstrap's dropdowns require Popper.js (https://popper.js.org/)");var o=this._element;"parent"===this._config.reference?o=t:m.isElement(this._config.reference)&&(o=this._config.reference,"undefined"!=typeof this._config.reference.jquery&&(o=this._config.reference[0])),"scrollParent"!==this._config.boundary&&p(t).addClass(He),this._popper=new be(o,this._menu,this._getPopperConfig())}"ontouchstart"in document.documentElement&&0===p(t).closest(Me).length&&p(document.body).children().on("mouseover",null,p.noop),this._element.focus(),this._element.setAttribute("aria-expanded",!0),p(this._menu).toggleClass(Ne),p(t).toggleClass(Ne).trigger(p.Event(Ae.SHOWN,n))}}}},t.show=function(){if(!(this._element.disabled||p(this._element).hasClass(Oe)||p(this._menu).hasClass(Ne))){var t={relatedTarget:this._element},e=p.Event(Ae.SHOW,t),n=c._getParentFromElement(this._element);p(n).trigger(e),e.isDefaultPrevented()||(p(this._menu).toggleClass(Ne),p(n).toggleClass(Ne).trigger(p.Event(Ae.SHOWN,t)))}},t.hide=function(){if(!this._element.disabled&&!p(this._element).hasClass(Oe)&&p(this._menu).hasClass(Ne)){var t={relatedTarget:this._element},e=p.Event(Ae.HIDE,t),n=c._getParentFromElement(this._element);p(n).trigger(e),e.isDefaultPrevented()||(p(this._menu).toggleClass(Ne),p(n).toggleClass(Ne).trigger(p.Event(Ae.HIDDEN,t)))}},t.dispose=function(){p.removeData(this._element,Ce),p(this._element).off(Te),this._element=null,(this._menu=null)!==this._popper&&(this._popper.destroy(),this._popper=null)},t.update=function(){this._inNavbar=this._detectNavbar(),null!==this._popper&&this._popper.scheduleUpdate()},t._addEventListeners=function(){var e=this;p(this._element).on(Ae.CLICK,function(t){t.preventDefault(),t.stopPropagation(),e.toggle()})},t._getConfig=function(t){return t=l({},this.constructor.Default,p(this._element).data(),t),m.typeCheckConfig(we,t,this.constructor.DefaultType),t},t._getMenuElement=function(){if(!this._menu){var t=c._getParentFromElement(this._element);t&&(this._menu=t.querySelector(Fe))}return this._menu},t._getPlacement=function(){var t=p(this._element.parentNode),e=qe;return t.hasClass(ke)?(e=Ue,p(this._menu).hasClass(Pe)&&(e=Be)):t.hasClass(Le)?e=Qe:t.hasClass(xe)?e=Ve:p(this._menu).hasClass(Pe)&&(e=Ke),e},t._detectNavbar=function(){return 0<p(this._element).closest(".navbar").length},t._getOffset=function(){var e=this,t={};return"function"==typeof this._config.offset?t.fn=function(t){return t.offsets=l({},t.offsets,e._config.offset(t.offsets,e._element)||{}),t}:t.offset=this._config.offset,t},t._getPopperConfig=function(){var t={placement:this._getPlacement(),modifiers:{offset:this._getOffset(),flip:{enabled:this._config.flip},preventOverflow:{boundariesElement:this._config.boundary}}};return"static"===this._config.display&&(t.modifiers.applyStyle={enabled:!1}),t},c._jQueryInterface=function(e){return this.each(function(){var t=p(this).data(Ce);if(t||(t=new c(this,"object"==typeof e?e:null),p(this).data(Ce,t)),"string"==typeof e){if("undefined"==typeof t[e])throw new TypeError('No method named "'+e+'"');t[e]()}})},c._clearMenus=function(t){if(!t||3!==t.which&&("keyup"!==t.type||9===t.which))for(var e=[].slice.call(document.querySelectorAll(je)),n=0,i=e.length;n<i;n++){var o=c._getParentFromElement(e[n]),r=p(e[n]).data(Ce),s={relatedTarget:e[n]};if(t&&"click"===t.type&&(s.clickEvent=t),r){var a=r._menu;if(p(o).hasClass(Ne)&&!(t&&("click"===t.type&&/input|textarea/i.test(t.target.tagName)||"keyup"===t.type&&9===t.which)&&p.contains(o,t.target))){var l=p.Event(Ae.HIDE,s);p(o).trigger(l),l.isDefaultPrevented()||("ontouchstart"in document.documentElement&&p(document.body).children().off("mouseover",null,p.noop),e[n].setAttribute("aria-expanded","false"),p(a).removeClass(Ne),p(o).removeClass(Ne).trigger(p.Event(Ae.HIDDEN,s)))}}}},c._getParentFromElement=function(t){var e,n=m.getSelectorFromElement(t);return n&&(e=document.querySelector(n)),e||t.parentNode},c._dataApiKeydownHandler=function(t){if((/input|textarea/i.test(t.target.tagName)?!(32===t.which||27!==t.which&&(40!==t.which&&38!==t.which||p(t.target).closest(Fe).length)):Ie.test(t.which))&&(t.preventDefault(),t.stopPropagation(),!this.disabled&&!p(this).hasClass(Oe))){var e=c._getParentFromElement(this),n=p(e).hasClass(Ne);if(n&&(!n||27!==t.which&&32!==t.which)){var i=[].slice.call(e.querySelectorAll(We));if(0!==i.length){var o=i.indexOf(t.target);38===t.which&&0<o&&o--,40===t.which&&o<i.length-1&&o++,o<0&&(o=0),i[o].focus()}}else{if(27===t.which){var r=e.querySelector(je);p(r).trigger("focus")}p(this).trigger("click")}}},s(c,null,[{key:"VERSION",get:function(){return"4.3.1"}},{key:"Default",get:function(){return Ye}},{key:"DefaultType",get:function(){return ze}}]),c}();p(document).on(Ae.KEYDOWN_DATA_API,je,Xe._dataApiKeydownHandler).on(Ae.KEYDOWN_DATA_API,Fe,Xe._dataApiKeydownHandler).on(Ae.CLICK_DATA_API+" 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Ge="modal",$e="bs.modal",Je="."+$e,Ze=p.fn[Ge],tn={backdrop:!0,keyboard:!0,focus:!0,show:!0},en={backdrop:"(boolean|string)",keyboard:"boolean",focus:"boolean",show:"boolean"},nn={HIDE:"hide"+Je,HIDDEN:"hidden"+Je,SHOW:"show"+Je,SHOWN:"shown"+Je,FOCUSIN:"focusin"+Je,RESIZE:"resize"+Je,CLICK_DISMISS:"click.dismiss"+Je,KEYDOWN_DISMISS:"keydown.dismiss"+Je,MOUSEUP_DISMISS:"mouseup.dismiss"+Je,MOUSEDOWN_DISMISS:"mousedown.dismiss"+Je,CLICK_DATA_API:"click"+Je+".data-api"},on="modal-dialog-scrollable",rn="modal-scrollbar-measure",sn="modal-backdrop",an="modal-open",ln="fade",cn="show",hn=".modal-dialog",un=".modal-body",fn='[data-toggle="modal"]',dn='[data-dismiss="modal"]',pn=".fixed-top, .fixed-bottom, .is-fixed, .sticky-top",mn=".sticky-top",gn=function(){function o(t,e){this._config=this._getConfig(e),this._element=t,this._dialog=t.querySelector(hn),this._backdrop=null,this._isShown=!1,this._isBodyOverflowing=!1,this._ignoreBackdropClick=!1,this._isTransitioning=!1,this._scrollbarWidth=0}var t=o.prototype;return t.toggle=function(t){return this._isShown?this.hide():this.show(t)},t.show=function(t){var e=this;if(!this._isShown&&!this._isTransitioning){p(this._element).hasClass(ln)&&(this._isTransitioning=!0);var n=p.Event(nn.SHOW,{relatedTarget:t});p(this._element).trigger(n),this._isShown||n.isDefaultPrevented()||(this._isShown=!0,this._checkScrollbar(),this._setScrollbar(),this._adjustDialog(),this._setEscapeEvent(),this._setResizeEvent(),p(this._element).on(nn.CLICK_DISMISS,dn,function(t){return e.hide(t)}),p(this._dialog).on(nn.MOUSEDOWN_DISMISS,function(){p(e._element).one(nn.MOUSEUP_DISMISS,function(t){p(t.target).is(e._element)&&(e._ignoreBackdropClick=!0)})}),this._showBackdrop(function(){return e._showElement(t)}))}},t.hide=function(t){var e=this;if(t&&t.preventDefault(),this._isShown&&!this._isTransitioning){var n=p.Event(nn.HIDE);if(p(this._element).trigger(n),this._isShown&&!n.isDefaultPrevented()){this._isShown=!1;var i=p(this._element).hasClass(ln);if(i&&(this._isTransitioning=!0),this._setEscapeEvent(),this._setResizeEvent(),p(document).off(nn.FOCUSIN),p(this._element).removeClass(cn),p(this._element).off(nn.CLICK_DISMISS),p(this._dialog).off(nn.MOUSEDOWN_DISMISS),i){var o=m.getTransitionDurationFromElement(this._element);p(this._element).one(m.TRANSITION_END,function(t){return e._hideModal(t)}).emulateTransitionEnd(o)}else this._hideModal()}}},t.dispose=function(){[window,this._element,this._dialog].forEach(function(t){return p(t).off(Je)}),p(document).off(nn.FOCUSIN),p.removeData(this._element,$e),this._config=null,this._element=null,this._dialog=null,this._backdrop=null,this._isShown=null,this._isBodyOverflowing=null,this._ignoreBackdropClick=null,this._isTransitioning=null,this._scrollbarWidth=null},t.handleUpdate=function(){this._adjustDialog()},t._getConfig=function(t){return t=l({},tn,t),m.typeCheckConfig(Ge,t,en),t},t._showElement=function(t){var e=this,n=p(this._element).hasClass(ln);this._element.parentNode&&this._element.parentNode.nodeType===Node.ELEMENT_NODE||document.body.appendChild(this._element),this._element.style.display="block",this._element.removeAttribute("aria-hidden"),this._element.setAttribute("aria-modal",!0),p(this._dialog).hasClass(on)?this._dialog.querySelector(un).scrollTop=0:this._element.scrollTop=0,n&&m.reflow(this._element),p(this._element).addClass(cn),this._config.focus&&this._enforceFocus();var i=p.Event(nn.SHOWN,{relatedTarget:t}),o=function(){e._config.focus&&e._element.focus(),e._isTransitioning=!1,p(e._element).trigger(i)};if(n){var r=m.getTransitionDurationFromElement(this._dialog);p(this._dialog).one(m.TRANSITION_END,o).emulateTransitionEnd(r)}else o()},t._enforceFocus=function(){var e=this;p(document).off(nn.FOCUSIN).on(nn.FOCUSIN,function(t){document!==t.target&&e._element!==t.target&&0===p(e._element).has(t.target).length&&e._element.focus()})},t._setEscapeEvent=function(){var e=this;this._isShown&&this._config.keyboard?p(this._element).on(nn.KEYDOWN_DISMISS,function(t){27===t.which&&(t.preventDefault(),e.hide())}):this._isShown||p(this._element).off(nn.KEYDOWN_DISMISS)},t._setResizeEvent=function(){var e=this;this._isShown?p(window).on(nn.RESIZE,function(t){return e.handleUpdate(t)}):p(window).off(nn.RESIZE)},t._hideModal=function(){var t=this;this._element.style.display="none",this._element.setAttribute("aria-hidden",!0),this._element.removeAttribute("aria-modal"),this._isTransitioning=!1,this._showBackdrop(function(){p(document.body).removeClass(an),t._resetAdjustments(),t._resetScrollbar(),p(t._element).trigger(nn.HIDDEN)})},t._removeBackdrop=function(){this._backdrop&&(p(this._backdrop).remove(),this._backdrop=null)},t._showBackdrop=function(t){var e=this,n=p(this._element).hasClass(ln)?ln:"";if(this._isShown&&this._config.backdrop){if(this._backdrop=document.createElement("div"),this._backdrop.className=sn,n&&this._backdrop.classList.add(n),p(this._backdrop).appendTo(document.body),p(this._element).on(nn.CLICK_DISMISS,function(t){e._ignoreBackdropClick?e._ignoreBackdropClick=!1:t.target===t.currentTarget&&("static"===e._config.backdrop?e._element.focus():e.hide())}),n&&m.reflow(this._backdrop),p(this._backdrop).addClass(cn),!t)return;if(!n)return void t();var i=m.getTransitionDurationFromElement(this._backdrop);p(this._backdrop).one(m.TRANSITION_END,t).emulateTransitionEnd(i)}else if(!this._isShown&&this._backdrop){p(this._backdrop).removeClass(cn);var o=function(){e._removeBackdrop(),t&&t()};if(p(this._element).hasClass(ln)){var r=m.getTransitionDurationFromElement(this._backdrop);p(this._backdrop).one(m.TRANSITION_END,o).emulateTransitionEnd(r)}else o()}else t&&t()},t._adjustDialog=function(){var t=this._element.scrollHeight>document.documentElement.clientHeight;!this._isBodyOverflowing&&t&&(this._element.style.paddingLeft=this._scrollbarWidth+"px"),this._isBodyOverflowing&&!t&&(this._element.style.paddingRight=this._scrollbarWidth+"px")},t._resetAdjustments=function(){this._element.style.paddingLeft="",this._element.style.paddingRight=""},t._checkScrollbar=function(){var t=document.body.getBoundingClientRect();this._isBodyOverflowing=t.left+t.right<window.innerWidth,this._scrollbarWidth=this._getScrollbarWidth()},t._setScrollbar=function(){var o=this;if(this._isBodyOverflowing){var t=[].slice.call(document.querySelectorAll(pn)),e=[].slice.call(document.querySelectorAll(mn));p(t).each(function(t,e){var n=e.style.paddingRight,i=p(e).css("padding-right");p(e).data("padding-right",n).css("padding-right",parseFloat(i)+o._scrollbarWidth+"px")}),p(e).each(function(t,e){var n=e.style.marginRight,i=p(e).css("margin-right");p(e).data("margin-right",n).css("margin-right",parseFloat(i)-o._scrollbarWidth+"px")});var n=document.body.style.paddingRight,i=p(document.body).css("padding-right");p(document.body).data("padding-right",n).css("padding-right",parseFloat(i)+this._scrollbarWidth+"px")}p(document.body).addClass(an)},t._resetScrollbar=function(){var t=[].slice.call(document.querySelectorAll(pn));p(t).each(function(t,e){var n=p(e).data("padding-right");p(e).removeData("padding-right"),e.style.paddingRight=n||""});var e=[].slice.call(document.querySelectorAll(""+mn));p(e).each(function(t,e){var n=p(e).data("margin-right");"undefined"!=typeof n&&p(e).css("margin-right",n).removeData("margin-right")});var n=p(document.body).data("padding-right");p(document.body).removeData("padding-right"),document.body.style.paddingRight=n||""},t._getScrollbarWidth=function(){var t=document.createElement("div");t.className=rn,document.body.appendChild(t);var e=t.getBoundingClientRect().width-t.clientWidth;return document.body.removeChild(t),e},o._jQueryInterface=function(n,i){return this.each(function(){var t=p(this).data($e),e=l({},tn,p(this).data(),"object"==typeof n&&n?n:{});if(t||(t=new o(this,e),p(this).data($e,t)),"string"==typeof n){if("undefined"==typeof t[n])throw new TypeError('No method named "'+n+'"');t[n](i)}else 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