Add ToastService, NToast etc

Modules/Bar/Tray.qml

@@ -12,7 +12,7 @@ import qs.Widgets
 Rectangle {
   readonly property real itemSize: 24 * scaling
 
-  visible: Settings.data.bar.showTray
+  visible: Settings.data.bar.showTray && SystemTray.items.length > 0
   width: tray.width + Style.marginM * scaling * 2
 
   height: Math.round(Style.capsuleHeight * scaling)

Modules/Bar/TrayMenu.qml

@@ -254,4 +254,4 @@ PopupWindow {
       }
     }
   }
-}
+}