fix: eslint warnings

src/App.vue

 <template>
   <div id="app">
-    <GeorchestraHeader v-if="isGeorchestra" :key="$route.fullPath"/>
+    <GeorchestraHeader
+      v-if="isGeorchestra"
+      :key="$route.fullPath"
+    />
     <AppHeader v-else />