Use different favicons for different components (notebook, terminal, file)

notebook/templates/edit.html

@@ -2,6 +2,8 @@
 
 {% block title %}{{page_title}}{% endblock %}
 
+{% block favicon %}<link rel="shortcut icon" type="image/x-icon" href="{{static_url("base/images/favicon-file.ico") }}">{% endblock %}
+
 {% block stylesheet %}
 <link rel="stylesheet" href="{{ static_url('components/codemirror/lib/codemirror.css') }}">
 <link rel="stylesheet" href="{{ static_url('components/codemirror/addon/dialog/dialog.css') }}">

notebook/templates/notebook.html

@@ -1,5 +1,7 @@
 {% extends "page.html" %}
 
+{% block favicon %}<link rel="shortcut icon" type="image/x-icon" href="{{static_url("base/images/favicon-notebook.ico") }}">{% endblock %}
+
 {% block stylesheet %}
 
 {% if mathjax_url %}

notebook/templates/terminal.html

@@ -2,6 +2,8 @@
 
 {% block title %}{{page_title}}{% endblock %}
 
+{% block favicon %}<link rel="shortcut icon" type="image/x-icon" href="{{static_url("base/images/favicon-terminal.ico") }}">{% endblock %}
+
 {% block bodyclasses %}terminal-app {{super()}}{% endblock %}
 
 {% block params %}