use more appropriate method

Author: fredcw

files/usr/share/cinnamon/applets/[email protected]/applet.js

@@ -123,23 +123,22 @@ class CinnamonNotificationsApplet extends Applet.TextIconApplet {
     }
 
     _arrangeDisplay() {
-        // Remove menu actors so we can put tham back in a different order according
-        // to orientation
+        // Remove menu actors so we can put them back in a different order according to orientation.
         this.menu.box.remove_all_children();
 
         if (this._orientation == St.Side.BOTTOM) {
-            this.menu.box.add(this.menu_label.actor);
+            this.menu.addActor(this.menu_label.actor);
             this.menu.addActor(this._maincontainer);
-            this.menu.box.add(this.clear_separator.actor);
-            this.menu.box.add(this.clear_action.actor);
+            this.menu.addActor(this.clear_separator.actor);
+            this.menu.addActor(this.clear_action.actor);
         } else {
-            this.menu.box.add(this.clear_action.actor);
-            this.menu.box.add(this.clear_separator.actor);
-            this.menu.box.add(this.menu_label.actor);
+            this.menu.addActor(this.clear_action.actor);
+            this.menu.addActor(this.clear_separator.actor);
+            this.menu.addActor(this.menu_label.actor);
             this.menu.addActor(this._maincontainer);
         }
 
-        this.menu.box.add(this.settingsMenuItem.actor);
+        this.menu.addActor(this.settingsMenuItem.actor);
     }
 
     _notification_added (mtray, notification) { // Notification event handler.