feat(app): 底部导航精简为三 Tab

test/home/home_nav_ui_test.dart

@@ -20,7 +20,6 @@ const _keys = [
   Key('home-tabs-bar'),
   Key('tab-home'),
   Key('tab-discover'),
-  Key('tab-ranking'),
   Key('tab-my'),
 ];
 
@@ -34,7 +33,7 @@ void main() {
         });
   });
 
-  testWidgets('should_theme_four_tabs_and_switch_selected_state_when_tapped', (
+  testWidgets('should_theme_three_tabs_and_switch_selected_state_when_tapped', (
     tester,
   ) async {
     final haptics = FakeHaptics();
@@ -96,14 +95,13 @@ void main() {
     );
   });
 
-  testWidgets('should_map_four_tabs_to_home_discover_ranking_and_me', (
+  testWidgets('should_map_three_tabs_to_home_discover_and_me', (
     tester,
   ) async {
     await _pumpApp(tester);
 
     expect(find.byKey(const Key('tab-home')), findsOneWidget);
     expect(find.byKey(const Key('tab-discover')), findsOneWidget);
-    expect(find.byKey(const Key('tab-ranking')), findsOneWidget);
     expect(find.byKey(const Key('tab-my')), findsOneWidget);
     expect(find.byKey(const Key('home-feed-info-card')), findsOneWidget);
 
@@ -111,10 +109,6 @@ void main() {
     await tester.pumpAndSettle();
     expect(find.byKey(const Key('home-all-dramas-grid')), findsOneWidget);
 
-    await tester.tap(find.byKey(const Key('tab-ranking')));
-    await tester.pumpAndSettle();
-    expect(find.byKey(const Key('ranking-page')), findsOneWidget);
-
     await tester.tap(find.byKey(const Key('tab-my')));
     await tester.pumpAndSettle();
     expect(find.text('Viewer'), findsOneWidget);