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

@@ -11,17 +11,20 @@ export struct TabInfoComponent {
   }
   }
 
 
   build() {
   build() {
-    Column() {
-      this.showLiveTitle()
-      this.showLiveDetails()
-      LiveCountdownComponent({liveDetailsBean:this.contentDetailData})
-    }.margin({
-      top: 13,
-      left: 16,
-      right: 16
-    })
-    .height('100%')
-    .alignItems(HorizontalAlign.Start)
+    Scroll(){
+      Column() {
+        this.showLiveTitle()
+        this.showLiveDetails()
+        LiveCountdownComponent({liveDetailsBean:this.contentDetailData})
+      }.margin({
+        top: 13,
+        left: 16,
+        right: 16
+      })
+      .alignItems(HorizontalAlign.Start)
+    }.layoutWeight(1)
+    .width("100%")
+    .scrollBar(BarState.Off)
   }
   }
 
 
   aboutToDisappear(): void {
   aboutToDisappear(): void {