fix(frontend): add missing import (follow-up of #12265)

packages/frontend/src/pages/user/home.vue

@@ -167,6 +167,7 @@ import number from '@/filters/number.js';
 import { userPage } from '@/filters/user.js';
 import * as os from '@/os.js';
 import { i18n } from '@/i18n.js';
+import { defaultStore } from '@/store.js';
 import { $i, iAmModerator } from '@/account.js';
 import { dateString } from '@/filters/date.js';
 import { confetti } from '@/scripts/confetti.js';