Ground-up Kotlin and Jetpack Compose rewrite with a fresh interface.

- Home tab: recently played, most played, recently added, rediscover, genres, decades
- Sortable, filterable albums, artists and playlists
- Search across albums, artists, playlists and songs
- Offline downloads with quality and metered-connection controls
- Editable queue: reorder, remove, jump to any track
- Adaptive theming from the current artwork
- Multiple servers, scrobbling and per-network stream quality