update only position of HoverActions when contentY of TimelineView

changes

src/qml/HoverActions.qml

@@ -44,8 +44,6 @@ QQC2.Control {
     leftPadding: 0
     rightPadding: 0
 
-    x: delegate ? delegate.contentItem.x + delegate.bubbleX : 0
-    y: delegate ? delegate.mapToItem(parent, 0, 0).y + delegate.bubbleY - height + Kirigami.Units.smallSpacing : 0
     width: delegate ? delegate.bubbleWidth : Kirigami.Units.gridUnit * 4
 
     visible: (root.hovered || root.showActions || showActionsTimer.running) && !Kirigami.Settings.isMobile
@@ -61,6 +59,15 @@ QQC2.Control {
         interval: 200
     }
 
+    function updatePosition() {
+        if (delegate) {
+            root.x = delegate.contentItem.x + delegate.bubbleX;
+            root.y = delegate.mapToItem(parent, 0, 0).y + delegate.bubbleY - height + Kirigami.Units.smallSpacing;
+        }
+    }
+
+    onDelegateChanged: updatePosition()
+
     contentItem: RowLayout {
         Item {
             Layout.fillWidth: true

src/qml/TimelineView.qml

@@ -294,11 +294,7 @@ QQC2.ScrollView {
             onFocusChatBar: root.focusChatBar()
         }
 
-        onContentYChanged: {
-            if (hoverActions.delegate) {
-                hoverActions.delegate.setHoverActionsToDelegate();
-            }
-        }
+        onContentYChanged: hoverActions.updatePosition()
 
         Connections {
             target: root.timelineModel