fix |> 20557 直播预告页面，直播简介信息过多时，鸿蒙不支持上滑，导致信息展示不完整

@@ -11,6 +11,7 @@ export struct TabInfoComponent {
   }
   }
 
 
   build() {
   build() {
+    Scroll(){
       Column() {
       Column() {
         this.showLiveTitle()
         this.showLiveTitle()
         this.showLiveDetails()
         this.showLiveDetails()
@@ -20,8 +21,10 @@ export struct TabInfoComponent {
         left: 16,
         left: 16,
         right: 16
         right: 16
       })
       })
-    .height('100%')
       .alignItems(HorizontalAlign.Start)
       .alignItems(HorizontalAlign.Start)
+    }.layoutWeight(1)
+    .width("100%")
+    .scrollBar(BarState.Off)
   }
   }
 
 
   aboutToDisappear(): void {
   aboutToDisappear(): void {