feat(following): 新增追剧三栏与双列网格

test/home/home_nav_ui_test.dart

@@ -8,7 +8,7 @@ import 'package:fruitshorts/core/data/repositories/playback_repository.dart';
 import 'package:fruitshorts/core/data/repositories/watch_history_repository.dart';
 import 'package:fruitshorts/core/theme/app_colors.dart';
 import 'package:fruitshorts/core/widgets/app_bottom_nav.dart';
-import 'package:fruitshorts/pages/favorites/favorites_page.dart';
+import 'package:fruitshorts/pages/following/following_page.dart';
 import 'package:shared_preferences_platform_interface/in_memory_shared_preferences_async.dart';
 import 'package:shared_preferences_platform_interface/shared_preferences_async_platform_interface.dart';
 
@@ -217,10 +217,9 @@ void main() {
 
     await tester.tap(find.byKey(const Key('tab-follow')));
     await tester.pumpAndSettle();
-    final favorites = find.byType(FavoritesContent);
+    final favorites = find.byType(FollowingPage);
     expect(favorites, findsOneWidget);
-    expect(find.byKey(const Key('favorites-page')), findsOneWidget);
-    expect(find.byKey(const Key('favorites-back')), findsNothing);
+    expect(find.byKey(const Key('following-page')), findsOneWidget);
     expect(find.byType(AppBottomNav), findsOneWidget);
     expect(
       find.descendant(of: favorites, matching: find.byType(Scaffold)),

test/home/k28_a_navigation_test.dart

@@ -36,8 +36,7 @@ void main() {
     await tester.tap(find.byKey(const Key('tab-follow')));
     await tester.pumpAndSettle();
 
-    expect(find.byKey(const Key('favorites-page')), findsOneWidget);
-    expect(find.byKey(const Key('favorites-back')), findsNothing);
+    expect(find.byKey(const Key('following-page')), findsOneWidget);
     expect(find.byType(AppBottomNav), findsOneWidget);
   });