Filter by provider across different views

[qdrop17]

First, thank you for creating Music Assistant—I use it daily and truly appreciate its functionality.

I’d like to suggest a feature: the ability to filter content by provider (e.g., Spotify, SoundCloud, Samba-Mount) across all views—Search, Artists, Albums, Tracks, and Playlists. This would significantly enhance a user's experience—for example, allowing to view only liked Spotify tracks or SoundCloud playlists.

I’d love to hear your thoughts!

[OzGav]

Duplicate https://github.com/orgs/music-assistant/discussions/1538