fix(frontend): /iのレスポンスに含まれないプロパティが消えずに残り続ける問題を修正

packages/frontend/src/pages/announcement.vue

@@ -55,7 +55,7 @@ import * as os from '@/os.js';
 import { misskeyApi } from '@/scripts/misskey-api.js';
 import { i18n } from '@/i18n.js';
 import { definePageMetadata } from '@/scripts/page-metadata.js';
-import { $i, updateAccount } from '@/account.js';
+import { $i, updateAccountPartial } from '@/account.js';
 import { defaultStore } from '@/store.js';
 
 const props = defineProps<{
@@ -90,7 +90,7 @@ async function read(target: Misskey.entities.Announcement): Promise<void> {
 	target.isRead = true;
 	await misskeyApi('i/read-announcement', { announcementId: target.id });
 	if ($i) {
-		updateAccount({
+		updateAccountPartial({
 			unreadAnnouncements: $i.unreadAnnouncements.filter((a: { id: string; }) => a.id !== target.id),
 		});
 	}