Fixes
- Fixed playlist context menu not working in search results (#14).
- Fixed playlist context menu for playlists that aren't cached.
- Fixed attempting to shuffle an empty playlist causing a crash.
Changes
- Album art for current track can now shown in tray icon (enabled by default).
- Album art now has a shape similar to application icon.
- Volume button can now be scrolled to adjust volume.
- Last volume is now saved for next start, instead of trying to fetch it again.