IssueNo: #I7X5WW:[新需求]: Rectify the arkts syntax of qs on monthly

Description: Rectify the arkts syntax of qs on monthly
Sig: SIG_ApplicaitonFramework
Feature or Bugfix: Feature
Binary Source: No
Signed-off-by: N189******51 <lipeicheng5@huawei.com>

zh-cn/application-dev/quick-start/arkts-link.md

@@ -227,10 +227,10 @@ struct Parent {
     Column() {
       Child({ items: $arr })
       ForEach(this.arr,
-        item => {
+        (item: void) => {
           Text(`${item}`)
         },
-        item => item.toString()
+        (item: ForEachInterface) => item.toString()
       )
     }
   }