1.0 library + player settings: Jellyfin/Link/Files library with details panel, player gear, settings cards, host flag

Library: source switch, selectable cards with a details panel, one merged
Continue row, Latest grouped per series without re-releases, Link page with
previews and recent links, Files embedded. Player: gear popover in both
designs, progress line while controls hide, live hwdec. Settings rebuilt as
cards. State marks the host member (proto stays 9, unreleased); hosting
shows LAN invite addresses; window buttons in fullscreen. fadeThrough keeps
the outgoing view's state.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

apps/desktop/lib/src/controls/uosc/timeline.dart

@@ -59,7 +59,7 @@ class UoscTimeline extends StatefulWidget {
   });
 
   static const height = 30.0;
-  static const collapsedHeight = 3.0;
+  static const collapsedHeight = 2.0;
 
   @override
   State<UoscTimeline> createState() => _UoscTimelineState();