feat(router): Add language settings route

- Added language settings page route
- Updated routes definitions

Author: fulleni

lib/router/router.dart

@@ -39,6 +39,7 @@ import 'package:ht_main/settings/bloc/settings_bloc.dart'; // Added
 import 'package:ht_main/settings/view/appearance_settings_page.dart'; // Added
 import 'package:ht_main/settings/view/feed_settings_page.dart'; // Added
 import 'package:ht_main/settings/view/font_settings_page.dart'; // Added for new page
+import 'package:ht_main/settings/view/language_settings_page.dart'; // Added for new page
 import 'package:ht_main/settings/view/notification_settings_page.dart'; // Added
 import 'package:ht_main/settings/view/settings_page.dart'; // Added
 import 'package:ht_main/settings/view/theme_settings_page.dart'; // Added for new page
@@ -592,6 +593,11 @@ GoRouter createRouter({
                             name: Routes.settingsNotificationsName,
                             builder: (context, state) => const NotificationSettingsPage(),
                           ),
+                          GoRoute(
+                            path: Routes.settingsLanguage, // 'language' relative to /account/settings
+                            name: Routes.settingsLanguageName,
+                            builder: (context, state) => const LanguageSettingsPage(),
+                          ),
                         ],
                       ),
                     ],

lib/router/routes.dart

@@ -68,6 +68,11 @@ abstract final class Routes {
   static const settingsArticleName = 'settingsArticle';
   static const settingsNotifications = 'notifications';
   static const settingsNotificationsName = 'settingsNotifications';
+
+  // --- Language Settings Sub-Route (relative to /account/settings) ---
+  static const settingsLanguage = 'language'; // Path: /account/settings/language
+  static const settingsLanguageName = 'settingsLanguage';
+
   // Add names for notification sub-selection routes if needed later
   // static const settingsNotificationCategories = 'categories';
   // static const settingsNotificationCategoriesName = 'settingsNotificationCategories';