Add a tab with a song / track overview

[JVT038]

Hi, I'd like to have a new tab on the left hand side, probably between the playlists & now playing tab. It would show all the songs available, like Navidrome shows all the songs.

[jeffvli]

Same/Related to #68

This is an API limitation unfortunately. Navidrome (and other Subsonic-API servers) don't expose a song list endpoint. Navidrome is using its own local API for its song list which has a different authentication method so it's not usable (easily if at all) outside of it.

Technically it may be possible by fetching all the albums and then display the album song data in a list. I was actually going to try this after adding offline support (#10) since I could probably save the song entries locally.

[JVT038]

Ah ok, that's unfortunate to hear...