fix(flutter): 底栏右侧改为清屏

test/player/player_fullscreen_test.dart

@@ -434,6 +434,20 @@ void main() {
     expect(find.byKey(const Key('player-exit-clear-screen')), findsOneWidget);
   });
 
+  testWidgets('should_enter_clear_screen_from_bottom_button', (tester) async {
+    await _pumpApp(tester);
+    await _openSeriesPlayer(tester);
+
+    expect(find.byKey(const Key('player-bottom-clear-screen')), findsOneWidget);
+    expect(find.byKey(const Key('player-pip')), findsNothing);
+    await tester.tap(find.byKey(const Key('player-bottom-clear-screen')));
+    await tester.pumpAndSettle();
+
+    expect(find.byKey(const Key('player-controls-top')), findsNothing);
+    expect(find.byKey(const Key('player-controls-bottom')), findsNothing);
+    expect(find.byKey(const Key('player-exit-clear-screen')), findsOneWidget);
+  });
+
   testWidgets('should_open_unlock_panel_with_honest_method_states', (
     tester,
   ) async {
@@ -478,6 +492,8 @@ void _expectFullscreenOverlay(WidgetTester tester) {
   }
   expect(find.byKey(const Key('player-play-toggle')), findsNothing);
   expect(find.byKey(const Key('player-episodes')), findsOneWidget);
+  expect(find.byKey(const Key('player-bottom-clear-screen')), findsOneWidget);
+  expect(find.byKey(const Key('player-pip')), findsNothing);
   expect(find.byKey(const Key('player-rail-comments')), findsOneWidget);
   expect(find.byKey(const Key('player-fullscreen-toggle')), findsNothing);
   expect(find.byType(Slider), findsOneWidget);