fix name of new HelpNotificationsView class

src/views/HelpNotificationsView.vue

@@ -59,7 +59,7 @@ interface Notification {
 }
 
 @Component({ components: { QuickNav } })
-export default class Help extends Vue {
+export default class HelpNotificationsView extends Vue {
   $notify!: (notification: Notification, timeout?: number) => void;
 }
 </script>