Release of version 0.4.5

Shuffle across the whole playlist

• Shuffle is applied to the entire playlist without restarting playback.
• Current playback position is preserved (no restart).

Spotify context menu

• New context menu entries for tracks linked to Spotify (e.g. open in Spotify, add to playlist, etc.).

Fix for 0:00 duration

• Fixed the bug that showed 0:00 duration for some tracks when not available from the service.

Preload and loading

• Preload: improved track preloading to reduce startup delays.
• Lazy load: lazy loading of lists for better performance and memory usage.

Batch sync

• Batch synchronization with Spotify to reduce API calls and improve stability.

Technical fixes

• getFullStatus: now always includes all tracks (0..N) in the returned state.
• Other minor stability and playback state consistency fixes.