fix: close app

Author: zuck

src/components/Sidebar.vue

@@ -92,7 +92,6 @@
       </q-item-section>
     </q-item>
     <q-item
-      v-if="$q.platform.is.electron"
       clickable
       v-ripple
       :title="$t('Close the application')"

src/layouts/MainLayout.vue

@@ -215,9 +215,7 @@ export default defineComponent({
     function onExit() {
       const hasUnsavedChanges = store.getters["editor/hasUnsavedChanges"];
       const exitApp = () => {
-        if (window.electron) {
-          window.electron.close();
-        }
+        window.close();
       };
       askConfirmOrExecute(hasUnsavedChanges, exitApp);
     }