refactor(frontend): import宣言周りのエラーを修正 (#12773)

packages/frontend/src/ui/deck/list-column.vue

@@ -16,7 +16,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 <script lang="ts" setup>
 import { watch, shallowRef, ref } from 'vue';
 import XColumn from './column.vue';
-import { updateColumn, Column } from './deck-store';
+import { updateColumn, Column } from './deck-store.js';
 import MkTimeline from '@/components/MkTimeline.vue';
 import * as os from '@/os.js';
 import { i18n } from '@/i18n.js';