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>

ios/Flutter/Profile.xcconfig

@@ -0,0 +1,2 @@
+#include? "Pods/Target Support Files/Pods-Runner/Pods-Runner.profile.xcconfig"
+#include "Generated.xcconfig"

ios/Podfile.lock

@@ -1,13 +1,13 @@
 PODS:
-  - AppAuth (1.7.5):
-    - AppAuth/Core (= 1.7.5)
-    - AppAuth/ExternalUserAgent (= 1.7.5)
-  - AppAuth/Core (1.7.5)
-  - AppAuth/ExternalUserAgent (1.7.5):
+  - AppAuth (2.0.0):
+    - AppAuth/Core (= 2.0.0)
+    - AppAuth/ExternalUserAgent (= 2.0.0)
+  - AppAuth/Core (2.0.0)
+  - AppAuth/ExternalUserAgent (2.0.0):
     - AppAuth/Core
   - Flutter (1.0.0)
   - flutter_appauth (0.0.1):
-    - AppAuth (= 1.7.5)
+    - AppAuth (= 2.0.0)
     - Flutter
   - flutter_secure_storage (6.0.0):
     - Flutter
@@ -70,9 +70,9 @@ EXTERNAL SOURCES:
     :path: ".symlinks/plugins/url_launcher_ios/ios"
 
 SPEC CHECKSUMS:
-  AppAuth: 501c04eda8a8d11f179dbe8637b7a91bb7e5d2fa
+  AppAuth: 1c1a8afa7e12f2ec3a294d9882dfa5ab7d3cb063
   Flutter: cabc95a1d2626b1b06e7179b784ebcf0c0cde467
-  flutter_appauth: 273bf736e38f7d85000b1a9ac15ace5800c277f2
+  flutter_appauth: d4abcf54856e5d8ba82ed7646ffc83245d4aa448
   flutter_secure_storage: 1ed9476fba7e7a782b22888f956cce43e2c62f13
   google_navigation_flutter: aff5e273b19113b8964780ff4e899f6f2e07f6dc
   GoogleMaps: 9ce9c898074e96655acaf1ba5d6f85991ecee7a3