fix(home): 调整短剧封面比例

test/home/home_card_style_test.dart

@@ -40,7 +40,10 @@ void main() {
 
     final cover = find.byKey(const Key('home-feed-cover-anime-card'));
     final coverSize = tester.getSize(cover);
-    expect(coverSize.height / coverSize.width, closeTo(6 / 5, 0.02));
+    expect(
+      coverSize.height / coverSize.width,
+      closeTo(1 / AppDimens.cardCoverAspectRatio, 0.02),
+    );
     final coverClip = tester.widget<ClipRRect>(
       find.byKey(const Key('home-feed-cover-clip-anime-card')),
     );