feat: add user groups

frontend/src/routes/settings/admin/user-groups/[id]/+page.server.ts

@@ -0,0 +1,9 @@
+import UserGroupService from '$lib/services/user-group-service';
+import type { PageServerLoad } from './$types';
+
+export const load: PageServerLoad = async ({ params, cookies }) => {
+	const userGroupService = new UserGroupService(cookies.get('access_token'));
+	const userGroup = await userGroupService.get(params.id);
+
+	return { userGroup };
+};