fix(a11y): 限制底栏文字缩放并统一播放页触控尺寸

test/home/app_bottom_nav_test.dart

@@ -210,4 +210,62 @@ void main() {
     await tester.pumpAndSettle();
     expect(find.byIcon(Icons.theaters_outlined), findsOneWidget);
   });
+
+  testWidgets('should_not_overflow_when_text_scale_is_two_on_narrow_screen', (
+    tester,
+  ) async {
+    tester.view.physicalSize = const Size(320, 640);
+    tester.view.devicePixelRatio = 1;
+    addTearDown(tester.view.resetPhysicalSize);
+    addTearDown(tester.view.resetDevicePixelRatio);
+
+    await tester.pumpWidget(
+      MaterialApp(
+        home: MediaQuery(
+          data: const MediaQueryData(textScaler: TextScaler.linear(2)),
+          child: Scaffold(
+            bottomNavigationBar: AppBottomNav(
+              items: [
+                AppBottomNavItem(
+                  tabKey: const Key('large-home'),
+                  icon: Icons.home_outlined,
+                  selectedIcon: Icons.home_rounded,
+                  label: 'Home',
+                  selected: true,
+                  onTap: () {},
+                ),
+                AppBottomNavItem(
+                  tabKey: const Key('large-recommend'),
+                  icon: Icons.celebration_outlined,
+                  selectedIcon: Icons.celebration_rounded,
+                  label: 'Recommend',
+                  onTap: () {},
+                ),
+                AppBottomNavItem(
+                  tabKey: const Key('large-following'),
+                  icon: Icons.bookmark_border_rounded,
+                  selectedIcon: Icons.bookmark_rounded,
+                  label: 'Following',
+                  onTap: () {},
+                ),
+                AppBottomNavItem(
+                  tabKey: const Key('large-mine'),
+                  icon: Icons.person_outline_rounded,
+                  selectedIcon: Icons.person_rounded,
+                  label: 'My',
+                  onTap: () {},
+                ),
+              ],
+            ),
+          ),
+        ),
+      ),
+    );
+
+    expect(tester.takeException(), isNull);
+    expect(
+      tester.getSize(find.byKey(const Key('large-recommend'))).height,
+      greaterThanOrEqualTo(AppDimens.tapTarget),
+    );
+  });
 }