Upgrade Flutter packages and fix breaking changes for Riverpod 3.0

Major package upgrades:
- Riverpod 2.x → 3.0.3 (breaking changes)
- flutter_appauth 7.0.0 → 11.0.0
- go_router 14.0.0 → 17.0.0
- permission_handler 11.3.0 → 12.0.1
- flutter_lints 5.0.0 → 6.0.0
- animate_do 3.1.2 → 4.2.0
- Plus 41 transitive dependency updates

Breaking changes fixed:

Riverpod 3.0 migration:
- Replace StateProvider with NotifierProvider pattern
- Update .valueOrNull to proper async value handling with .future
- Create LanguageNotifier and ThemeModeNotifier classes
- Fix all provider async value access patterns

Google Maps Navigation API updates:
- Rename GoogleMapsNavigationViewController to GoogleNavigationViewController
- Update Waypoint to NavigationWaypoint.withLatLngTarget
- Migrate controller methods to static GoogleMapsNavigator methods
- Update event listener types and callbacks

Localization system fixes:
- Update l10n.yaml synthetic-package configuration
- Fix import paths from flutter_gen to package imports
- Add errorTitle translation key for both en/fr
- Remove unnecessary null-aware operators (AppLocalizations is non-nullable)
- Regenerate localization files

iOS/macOS configuration:
- Update CocoaPods dependencies (AppAuth 1.7.5 → 2.0.0)
- Create missing Profile.xcconfig files for both platforms
- Sync Podfile.lock files with updated dependencies

Code quality:
- Fix all analyzer errors (0 errors remaining)
- Resolve deprecated API usage warnings
- Update async/await patterns for better error handling

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

lib/providers/providers.dart

@@ -37,7 +37,7 @@ final authTokenProvider = FutureProvider<String?>((ref) async {
 });
 
 final deliveryRoutesProvider = FutureProvider<List<DeliveryRoute>>((ref) async {
-  final token = ref.watch(authTokenProvider).valueOrNull;
+  final token = await ref.read(authTokenProvider.future);
 
   if (token == null) {
     throw Exception('User not authenticated');
@@ -70,7 +70,7 @@ final deliveryRoutesProvider = FutureProvider<List<DeliveryRoute>>((ref) async {
 });
 
 final deliveriesProvider = FutureProvider.family<List<Delivery>, int>((ref, routeFragmentId) async {
-  final token = ref.watch(authTokenProvider).valueOrNull;
+  final token = await ref.read(authTokenProvider.future);
 
   if (token == null) {
     throw Exception('User not authenticated');
@@ -103,7 +103,7 @@ final deliveriesProvider = FutureProvider.family<List<Delivery>, int>((ref, rout
 
 /// Provider to get all deliveries from all routes
 final allDeliveriesProvider = FutureProvider<List<Delivery>>((ref) async {
-  final routes = ref.watch(deliveryRoutesProvider).valueOrNull ?? [];
+  final routes = await ref.read(deliveryRoutesProvider.future);
 
   if (routes.isEmpty) {
     return [];
@@ -127,14 +127,28 @@ final allDeliveriesProvider = FutureProvider<List<Delivery>>((ref) async {
   return allDeliveries;
 });
 
-final languageProvider = StateProvider<String>((ref) {
-  return 'fr';
+// Language notifier for state management
+class LanguageNotifier extends Notifier<String> {
+  @override
+  String build() => 'fr';
+
+  void setLanguage(String lang) => state = lang;
+}
+
+final languageProvider = NotifierProvider<LanguageNotifier, String>(() {
+  return LanguageNotifier();
 });
 
-/// Theme mode provider for manual theme switching
-/// Default is ThemeMode.dark for testing
-final themeModeProvider = StateProvider<ThemeMode>((ref) {
-  return ThemeMode.dark;
+// Theme mode notifier for manual theme switching
+class ThemeModeNotifier extends Notifier<ThemeMode> {
+  @override
+  ThemeMode build() => ThemeMode.dark;
+
+  void setThemeMode(ThemeMode mode) => state = mode;
+}
+
+final themeModeProvider = NotifierProvider<ThemeModeNotifier, ThemeMode>(() {
+  return ThemeModeNotifier();
 });
 
 class _EmptyQuery implements Serializable {