- Add animation_utils.dart with skeleton loaders, staggered list animations,
animated checkboxes, badge bump, download success overlay, and shared
page route helper
- Replace CircularProgressIndicator with shimmer skeleton loaders across
album, artist, playlist, search, store, and extension screens
- Unify page transitions via slidePageRoute (MaterialPageRoute) for
Android predictive back gesture support
- Extract AnimatedSelectionCheckbox with configurable unselectedColor
to preserve original transparent/opaque backgrounds per context
- Add swipe-to-dismiss on download queue items with confirmDismiss
dialog for active downloads to prevent accidental cancellation
- Add Hero animations for cover art transitions between list and detail
- Add AnimatedBadge bump on navigation bar badge count changes
- Add DownloadSuccessOverlay green flash on download completion
- Restore fine-grained ref.watch(.select()) in _CollectionTrackTile
to avoid full list rebuilds on download history changes
- Fix DownloadSuccessOverlay re-flashing on widget recreation by
initialising _wasSuccess from initial widget state
- Remove orphan Hero tag in search_screen that had no matching pair
- Chip borderRadius updated from 8 to 20 for consistency
zarzet