fix: wrong trim all white space lyric (#1233)

src/utils/lyrics.js

@@ -28,7 +28,7 @@ export function parseLyric(lrc) {
         lrcObj.push({
           time: time,
           rawTime: timeRegExpArr[0],
-          content: content.trim(),
+          content: trimContent(content),
         });
       }
     }
@@ -36,3 +36,8 @@ export function parseLyric(lrc) {
   lrcObj.sort((a, b) => a.time - b.time);
   return lrcObj;
 }
+
+function trimContent(content) {
+  let t = content.trim();
+  return t.length < 1 ? content : t;
+}