refactor: remove all unused imports (#9951)

Co-authored-by: tamaina <tamaina@hotmail.co.jp>

packages/frontend/src/router.ts

@@ -3,7 +3,6 @@ import { Router } from '@/nirax';
 import { $i, iAmModerator } from '@/account';
 import MkLoading from '@/pages/_loading_.vue';
 import MkError from '@/pages/_error_.vue';
-import { ui } from '@/config';
 
 const page = (loader: AsyncComponentLoader<any>) => defineAsyncComponent({
 	loader: loader,