chore: migrate remaining pages to script setup (#7310)

frontend/pages/g/[groupSlug]/index.vue

@@ -4,10 +4,6 @@
   </div>
 </template>
 
-<script lang="ts">
+<script setup lang="ts">
 import RecipeExplorerPage from "~/components/Domain/Recipe/RecipeExplorerPage/RecipeExplorerPage.vue";
-
-export default defineNuxtComponent({
-  components: { RecipeExplorerPage },
-});
 </script>