Use LibVLC via WebChimera.js instead of VLC through its HTTP API.
This closes#17 and fixes#10, finishes two tasks of #2 and actually solves a few additional issues like:
- Not being able to resume playback from a stopped playlist.
- Unclear and buggy definition of volume range.
- Bot just showing "playing next playlist entry" instead of actually showing the title of the next playlist entry.
- Missing "previous" command to go to previous playlist entry.
- Missing "loop" command to loop the playlist. (Now exists in form of "loop on"/"loop off")
- Missing "stop-after" command to stop playback after current track ends.
- A small bug in ts3query.iced that didn't escape line breaks. (Was in use here for "playlist"/"list" commands which got removed in the process.)
Known issues:
- Starting with an empty playlist, adding an entry and then typing "next" will automatically play the first entry. This is not really a bug or even an issue but definitely unexpected behavior that is coming from VLC.
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