fix(issues:I7X845):修复左侧滚动分割线长度不正确问题

qml/AppUI/AppList.qml

@@ -28,6 +28,7 @@ Item {
     property string title: ""
     property string idSelect: ""
     property bool folderEditStatus: false
+    property int viewContentY: appListView.view.contentY
     signal labelItemClicked()
     signal openFolderPageSignal(string folderId, string folderName)
     function labelSelection(labelId) {

qml/AppUI/AppListView.qml

@@ -33,16 +33,6 @@ MouseArea {
     hoverEnabled: true
     clip: true
 
-    AppControls2.StyleBackground {
-        anchors.top: parent.top
-        width: parent.width
-        height: 1
-        useStyleTransparent: false
-        alpha: 0.15
-        paletteRole: Palette.Text
-        visible: listView.contentY > 0
-    }
-
     RowLayout {
         anchors.fill: parent
         spacing: 0

qml/AppUI/AppPageContent.qml

@@ -41,6 +41,16 @@ SwipeView {
 
     Item {
         id: appListBase
+        AppControls2.StyleBackground {
+            anchors.top: parent.top
+            width: parent.width
+            height: 1
+            useStyleTransparent: false
+            alpha: 0.15
+            paletteRole: Palette.Text
+            visible: appList.viewContentY > 0 && appList.visible
+        }
+
         AppList {
             id: appList
             anchors.fill: parent