feat(nav): move mobile settings to home menu

lib/screens/discover_screen.dart

@@ -66,6 +66,7 @@ import '../services/system_shelf_service.dart';
 import 'auth_screen.dart';
 import 'libraries/content_state_builder.dart';
 import 'main_screen.dart';
+import 'settings/settings_screen.dart';
 import '../watch_together/watch_together.dart';
 import '../providers/companion_remote_provider.dart';
 import '../widgets/companion_remote/remote_session_dialog.dart';
@@ -1101,6 +1102,16 @@ class _DiscoverScreenState extends State<DiscoverScreen>
     Navigator.push(context, MaterialPageRoute(builder: (context) => const ProfileSwitchScreen()));
   }
 
+  void _handleOpenSettings(BuildContext context) {
+    final mainScope = MainScreenFocusScope.of(context, listen: false);
+    if (mainScope != null) {
+      mainScope.openSettings?.call();
+      return;
+    }
+
+    Navigator.push(context, MaterialPageRoute(builder: (_) => const SettingsScreen()));
+  }
+
   /// Build the [FocusableAction] wrapping the user menu.
   /// Pulls live state from [ActiveProfileProvider]; the menu reuses
   /// [_userMenuItems] for the menu contents so d-pad and tap paths
@@ -1146,6 +1157,7 @@ class _DiscoverScreenState extends State<DiscoverScreen>
         ),
       if (switchable.isNotEmpty) const AppMenuDivider(),
       AppMenuItem<String>(value: 'manage_profiles', icon: Symbols.group_rounded, label: t.profiles.sectionTitle),
+      AppMenuItem<String>(value: 'settings', icon: Symbols.settings_rounded, label: t.common.settings),
       AppMenuItem<String>(value: 'logout', icon: Symbols.logout_rounded, label: t.common.logout),
     ];
   }
@@ -1160,6 +1172,10 @@ class _DiscoverScreenState extends State<DiscoverScreen>
       _handleSwitchProfile(context);
       return;
     }
+    if (value == 'settings') {
+      _handleOpenSettings(context);
+      return;
+    }
     if (value.startsWith('profile:')) {
       final id = value.substring('profile:'.length);
       final active = context.read<ActiveProfileProvider>();

lib/screens/main_screen.dart

@@ -69,6 +69,7 @@ class MainScreenFocusScope extends InheritedWidget {
   final double? foregroundWidth;
   final double? viewportWidth;
   final void Function(String libraryGlobalKey)? selectLibrary;
+  final VoidCallback? openSettings;
 
   const MainScreenFocusScope({
     super.key,
@@ -81,6 +82,7 @@ class MainScreenFocusScope extends InheritedWidget {
     this.foregroundWidth,
     this.viewportWidth,
     this.selectLibrary,
+    this.openSettings,
     required super.child,
   });
 
@@ -1405,6 +1407,16 @@ class _MainScreenState extends State<MainScreen>
     }
   }
 
+  void _openSettings() {
+    if (PlatformDetector.shouldUseSideNavigation(context)) {
+      _selectTab(NavigationTabId.settings);
+      _focusContent(restorePreviousFocus: false);
+      return;
+    }
+
+    Navigator.push(context, MaterialPageRoute(builder: (_) => const SettingsScreen()));
+  }
+
   void _handleLibrariesScreenSelected(String libraryGlobalKey) {
     if (_selectedLibraryGlobalKey == libraryGlobalKey) return;
     setState(() => _selectedLibraryGlobalKey = libraryGlobalKey);
@@ -1472,6 +1484,12 @@ class _MainScreenState extends State<MainScreen>
     return NavigationTab.getVisibleTabs(isOffline: isOffline, hasLiveTv: _hasLiveTv);
   }
 
+  List<NavigationTab> _getBottomNavigationTabs(BuildContext context) {
+    final tabs = _getVisibleTabs(_isOffline);
+    if (!PlatformDetector.isMobile(context)) return tabs;
+    return tabs.where((tab) => tab.id != NavigationTabId.settings).toList();
+  }
+
   /// Get the GlobalKey for a given tab.
   GlobalKey? _screenKeyFor(NavigationTabId tab) {
     return switch (tab) {
@@ -1485,9 +1503,10 @@ class _MainScreenState extends State<MainScreen>
   }
 
   Widget _buildBottomNavigationBar(BuildContext context, {required bool hideLabels}) {
-    final tabs = _getVisibleTabs(_isOffline);
+    final tabs = _getBottomNavigationTabs(context);
+    final selectedIndex = tabs.indexWhere((tab) => tab.id == _currentTab);
     final navigationBar = NavigationBar(
-      selectedIndex: _currentIndex,
+      selectedIndex: selectedIndex >= 0 ? selectedIndex : 0,
       onDestinationSelected: (i) {
         if (i >= 0 && i < tabs.length) _selectTab(tabs[i].id);
       },
@@ -1592,6 +1611,7 @@ class _MainScreenState extends State<MainScreen>
                           foregroundWidth: contentLayout.width,
                           viewportWidth: viewportWidth,
                           selectLibrary: _selectLibrary,
+                          openSettings: _openSettings,
                           child: SideNavigationScope(
                             child: Stack(
                               clipBehavior: Clip.hardEdge,