[applets]: Fix scrolling in ScrollViews

CCBUG: 448243

applets/batterymonitor/package/contents/ui/PopupDialog.qml

@@ -161,17 +161,7 @@ PlasmaComponents3.Page {
                     KeyNavigation.backtab: pmSwitch
 
                     delegate: BatteryItem {
-                        // Add a padding between an item and the scroll bar.
-                        // Anchors are well-behaved in RTL environments too.
-                        anchors {
-                            left: parent ? parent.left : undefined
-                            right: parent ? parent.right : undefined
-                            rightMargin: {
-                                const scrollBar = batteryScrollView.PlasmaComponents3.ScrollBar.vertical;
-                                const hasScrollBar = scrollBar !== null && scrollBar.visible;
-                                return hasScrollBar ? (PlasmaCore.Units.smallSpacing * 2) : 0;
-                            }
-                        }
+                        width: ListView.view.width
                         battery: model
                         remainingTime: dialog.remainingTime
                         matchHeightOfSlider: brightnessSlider.slider

applets/devicenotifier/package/contents/ui/FullRepresentation.qml

@@ -120,9 +120,6 @@ PlasmaExtras.Representation {
         PlasmaComponents3.ScrollBar.horizontal.policy: PlasmaComponents3.ScrollBar.AlwaysOff
 
         anchors.fill: parent
-        leftPadding: PlasmaCore.Units.smallSpacing * 2
-        rightPadding: PlasmaCore.Units.smallSpacing * 2
-
 
         contentItem: ListView {
             id: notifierDialog
@@ -131,7 +128,7 @@ PlasmaExtras.Representation {
             model: filterModel
 
             delegate: DeviceItem {
-                width: notifierDialog.width - (scrollView.PlasmaComponents3.ScrollBar.vertical.visible ? PlasmaCore.Units.smallSpacing * 4 : 0)
+                width: ListView.view.width - PlasmaCore.Units.smallSpacing * 4
                 udi: DataEngineSource
             }
             highlight: PlasmaComponents.Highlight { }
@@ -140,6 +137,8 @@ PlasmaExtras.Representation {
 
             topMargin: PlasmaCore.Units.smallSpacing * 2
             bottomMargin: PlasmaCore.Units.smallSpacing * 2
+            leftMargin: PlasmaCore.Units.smallSpacing * 2
+            rightMargin: PlasmaCore.Units.smallSpacing * 2
             spacing: PlasmaCore.Units.smallSpacing
 
             currentIndex: devicenotifier.currentIndex

applets/notifications/package/contents/ui/FullRepresentation.qml

@@ -228,10 +228,6 @@ PlasmaExtras.Representation {
         id: scrollView
         anchors.fill: parent
         background: null
-        leftPadding: PlasmaCore.Units.smallSpacing * 2
-        rightPadding: PlasmaCore.Units.smallSpacing * 2
-
-
         // HACK: workaround for https://bugreports.qt.io/browse/QTBUG-83890
         PlasmaComponents3.ScrollBar.horizontal.policy: PlasmaComponents3.ScrollBar.AlwaysOff
 
@@ -239,8 +235,11 @@ PlasmaExtras.Representation {
             id: list
             model: historyModel
             currentIndex: -1
+
             topMargin: PlasmaCore.Units.smallSpacing * 2
             bottomMargin: PlasmaCore.Units.smallSpacing * 2
+            leftMargin: PlasmaCore.Units.smallSpacing * 2
+            rightMargin: PlasmaCore.Units.smallSpacing * 2
             spacing: PlasmaCore.Units.smallSpacing
 
             Keys.onDeletePressed: {
@@ -355,7 +354,7 @@ PlasmaExtras.Representation {
 
             delegate: DraggableDelegate {
                 id: delegate
-                width: ListView.view.width - (scrollView.PlasmaComponents3.ScrollBar.vertical.visible ? PlasmaCore.Units.smallSpacing * 4 : 0)
+                width: ListView.view.width - PlasmaCore.Units.smallSpacing * 4
                 contentItem: delegateLoader
 
                 draggable: !model.isGroup && model.type != NotificationManager.Notifications.JobType