[web] Add lyrics player to the webinterface

Update icons.js
Add icons in alphabetical order.
Change comment to remove reference to external website
Remove extra line feeds

Co-Authored-by: Alain Nussbaumer <alain.nussbaumer@alleluia.ch>

web-src/src/locales/de.json

@@ -578,7 +578,8 @@
       "shuffle-disabled": "Tracks in Reihenfolge wiedergeben",
       "skip-backward": "Zum vorherigen Track springen",
       "skip-forward": "Zum nächsten Track springen",
-      "stop": "Wiedergabe stoppen"
+      "stop": "Wiedergabe stoppen",
+      "toggle-lyrics": "Liedtexte anzeigen/verbergen"
     }
   },
   "setting": {

web-src/src/locales/en.json

@@ -578,7 +578,8 @@
       "shuffle-disabled": "Play tracks in order",
       "skip-backward": "Skip to previous track",
       "skip-forward": "Skip to next track",
-      "stop": "Stop"
+      "stop": "Stop",
+      "toggle-lyrics": "Toggle lyrics"
     }
   },
   "setting": {

web-src/src/locales/fr.json

@@ -578,7 +578,8 @@
       "shuffle-disabled": "Lire les pistes dans l’ordre",
       "skip-backward": "Reculer à la piste précédente",
       "skip-forward": "Avancer à la piste suivante",
-      "stop": "Arrêter la lecture"
+      "stop": "Arrêter la lecture",
+      "toggle-lyrics": "Voir/Cacher les paroles"
     }
   },
   "setting": {

web-src/src/locales/zh.json

@@ -578,7 +578,8 @@
       "shuffle-disabled": "按顺序播放曲目",
       "skip-backward": "播放上一首",
       "skip-forward": "播放下一首",
-      "stop": "停止"
+      "stop": "停止",
+      "toggle-lyrics": "显示/隐藏歌词"
     }
   },
   "setting": {