fix:1）修改我的首次删除弹框和清理缓存弹框按钮颜色

@@ -47,7 +47,7 @@ struct MyCollectionListPage {
       },
       title:this.isAllSelect?'是否确认清空?':'确认删除'+this.deleteNum.toString()+'条收藏',
       tipShow: false ,
-      leftTextColor:$r('app.color.color_648DF2'),
+      leftTextColor:$r('app.color.color_333333')
     }),
     autoCancel: true,
     alignment: DialogAlignment.Center,

@@ -49,7 +49,7 @@ export struct MineSettingComponent {
       title: "清理缓存",
       tipValue:"是否确认清理此App的缓存",
       tipShow:true,
-      leftTextColor:$r('app.color.color_648DF2')
+      leftTextColor:$r('app.color.color_333333')
     }),
     autoCancel: true,
     alignment: DialogAlignment.Center,

@@ -26,7 +26,7 @@ struct DefaultWebPage {
           isPageEnd: $isPageEnd
         })
       }.layoutWeight(1)
-      .expandSafeArea([SafeAreaType.SYSTEM], [SafeAreaEdge.TOP])
+
 
       Row() {
         Button({ type: ButtonType.Normal }) {