fix(home): 调整短剧封面比例

lib/core/theme/app_dimens.dart

@@ -99,7 +99,7 @@ abstract final class AppDimens {
   static const double cardBadgeFont = 9;
   static const double cardCoverTitleGap = 6;
   static const double cardTitleTagGap = 6;
-  static const double cardCoverAspectRatio = 5 / 6;
+  static const double cardCoverAspectRatio = 3 / 4;
   static const double homeCardBodyExtent = 84;
   static const double homePrimaryTabFont = 18;
   static const double homePrimaryTabSelectedFont = 20;

lib/pages/home/widgets/home_feed_grid.dart

@@ -129,7 +129,9 @@ class _HomeFeedGridState extends State<HomeFeedGrid> {
                 AppDimens.feedPageHorizontal * 2 -
                 AppDimens.homeGridGap * 2) /
             3;
-        final itemExtent = itemWidth * 6 / 5 + AppDimens.homeCardBodyExtent;
+        final itemExtent =
+            itemWidth / AppDimens.cardCoverAspectRatio +
+            AppDimens.homeCardBodyExtent;
         return NotificationListener<ScrollNotification>(
           onNotification: _onScroll,
           child: AppPullToRefresh(

lib/pages/recommend/widgets/all_dramas_filter_grid.dart

@@ -52,7 +52,9 @@ class _AllDramasFilterGridState extends State<AllDramasFilterGrid> {
                 AppDimens.feedPageHorizontal * 2 -
                 AppDimens.homeGridGap * 2) /
             3;
-        final itemExtent = itemWidth * 6 / 5 + AppDimens.homeCardBodyExtent;
+        final itemExtent =
+            itemWidth / AppDimens.cardCoverAspectRatio +
+            AppDimens.homeCardBodyExtent;
         return NotificationListener<ScrollNotification>(
           onNotification: _onScroll,
           child: AppPullToRefresh(