feat: quality picker with track info, update dialog redesign, finalizing notification fix

- Quality picker now shows track name, artist, and cover
- Tap to expand long track titles (icon only shows when truncated)
- Ripple effect follows rounded corners including drag handle
- Update dialog redesigned with Material Expressive 3 style
- Fixed update notification stuck at 100% after download complete
- Ask before download now enabled by default
- Finalizing notification for multi-progress polling

lib/widgets/settings_group.dart

@@ -20,9 +20,10 @@ class SettingsGroup extends StatelessWidget {
     // Use a more contrasting color for cards
     // In dark mode with dynamic color, surfaceContainerHighest can be too similar to surface
     // So we add a slight white overlay to make it more visible
+    // In light mode with dynamic color, we add a slight black overlay for the same reason
     final cardColor = isDark 
         ? Color.alphaBlend(Colors.white.withValues(alpha: 0.08), colorScheme.surface)
-        : colorScheme.surfaceContainerHighest;
+        : Color.alphaBlend(Colors.black.withValues(alpha: 0.04), colorScheme.surface);
     
     return Container(
       margin: margin ?? const EdgeInsets.symmetric(horizontal: 16, vertical: 4),