refactor(frontend): popupMenuの項目作成時に三項演算子をなるべく使わないように (#14554)

* refactor(frontend): popupMenuの項目作成時に三項演算子をなるべく使わないように

* type import

* fix

* lint

packages/frontend/src/components/MkDrive.folder.vue

@@ -42,7 +42,7 @@ import { i18n } from '@/i18n.js';
 import { defaultStore } from '@/store.js';
 import { claimAchievement } from '@/scripts/achievements.js';
 import { copyToClipboard } from '@/scripts/copy-to-clipboard.js';
-import { MenuItem } from '@/types/menu.js';
+import type { MenuItem } from '@/types/menu.js';
 
 const props = withDefaults(defineProps<{
 	folder: Misskey.entities.DriveFolder;