perf(embed): improve embed performance (#14613)

* wip

* wip

* wip

* refactor

* refactor

---------

Co-authored-by: かっこかり <67428053+kakkokari-gtyih@users.noreply.github.com>

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

@@ -142,8 +142,8 @@ import EmAcct from '@/components/EmAcct.vue';
 import { userPage } from '@/utils.js';
 import { notePage } from '@/utils.js';
 import { i18n } from '@/i18n.js';
+import { DI } from '@/di.js';
 import { shouldCollapsed } from '@@/js/collapsed.js';
-import { serverMetadata } from '@/server-metadata.js';
 import { url } from '@@/js/config.js';
 import EmMfm from '@/components/EmMfm.js';
 
@@ -151,6 +151,8 @@ const props = defineProps<{
 	note: Misskey.entities.Note;
 }>();
 
+const serverMetadata = inject(DI.serverMetadata)!;
+
 const inChannel = inject('inChannel', null);
 
 const note = ref(props.note);