feat:增加朋友圈评论显示模块

lib/widgets/recipe/list.dart

@@ -27,19 +27,18 @@ class _RecipeListState extends State<RecipeList> {
     final colors = Theme.of(context).colorScheme;
 
     return Container(
-      width: 150,
+      width: 140,
       decoration: BoxDecoration(
-        color: Colors.white,
+        color: colors.surfaceContainer,
         borderRadius: BorderRadius.circular(12),
         border: Border.all(color: Colors.grey[200]!),
       ),
       padding: EdgeInsets.symmetric(horizontal: 16),
       child: DropdownButton<String>(
         value: provider.queryCategory,
-        hint: Text('请选择菜谱类别', style: TextStyle(color: Colors.grey[500])),
         isExpanded: true,
         borderRadius: BorderRadius.circular(12),
-        dropdownColor: Colors.white,
+        dropdownColor: colors.surfaceContainer,
         elevation: 6,
         underline: Container(),
         items: