fix(frontend-embed): 不足していたスタイル・インポートを追加 (#14531)

* fix(frontend-embed): add missing imports

* fix(frontend-embed): add missing styles

packages/frontend-embed/src/components/EmNoteSimple.vue

@@ -25,6 +25,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 import { ref } from 'vue';
 import * as Misskey from 'misskey-js';
 import { i18n } from '@/i18n.js';
+import EmAvatar from '@/components/EmAvatar.vue';
 import EmNoteHeader from '@/components/EmNoteHeader.vue';
 import EmSubNoteContent from '@/components/EmSubNoteContent.vue';
 import EmMfm from '@/components/EmMfm.js';