feat(flutter): 剧场页按参考图重做

test/widget_test.dart

@@ -215,7 +215,7 @@ void main() {
     expect(find.byKey(const Key('theater-category-chips')), findsOneWidget);
     expect(find.byKey(const Key('theater-language-chips')), findsNothing);
     expect(find.byKey(const Key('home-all-dramas-grid')), findsOneWidget);
-    expect(find.byKey(const Key('discover-profile')), findsOneWidget);
+    expect(find.byKey(const Key('discover-identify')), findsOneWidget);
     expect(tester.takeException(), isNull);
   });