style(theme): 客户端切换深色视觉风格

lib/pages/watch_records/widgets/watch_record_card.dart

@@ -170,7 +170,7 @@ class WatchRecordCard extends StatelessWidget {
       key: ValueKey('watch-record-${record.dramaId}'),
       decoration: _cardDecoration(),
       child: Material(
-        color: Colors.transparent,
+        color: AppColors.transparent,
         borderRadius: BorderRadius.circular(_cardRadius),
         clipBehavior: Clip.antiAlias,
         child: InkWell(