fix: Application tray button can accept right mouse button

only accept left mouse button

Log: as title
Pms: BUG-293895

Author: yixinshark

panels/dock/tray/package/ActionShowStashDelegate.qml

@@ -56,7 +56,6 @@ AppletItemButton {
             name: "opened"
             PropertyChanges { target: root.contentItem; rotation: 180 }
         },
-
         State {
             name: "closed"
             PropertyChanges { target: root.contentItem; rotation: 0 }
@@ -93,13 +92,17 @@ AppletItemButton {
         when: stashedPopup.popupVisibleChanged
     }
 
-    onClicked: {
-        if (stashedPopup.popupVisible) {
-            stashedPopup.close();
-        } else {
-            stashedPopup.open();
+    MouseArea {
+        anchors.fill: parent
+        acceptedButtons: Qt.LeftButton
+        onClicked: {
+            if (stashedPopup.popupVisible) {
+                stashedPopup.close();
+            } else {
+                stashedPopup.open();
+            }
+            toolTip.close();
         }
-        toolTip.close();
     }
 
     PanelToolTip {