refactor(client): use css modules

packages/frontend/src/components/global/MkAcct.vue

@@ -1,7 +1,7 @@
 <template>
-<span class="mk-acct">
-	<span class="name">@{{ user.username }}</span>
-	<span v-if="user.host || detail || $store.state.showFullAcct" class="host">@{{ user.host || host }}</span>
+<span>
+	<span>@{{ user.username }}</span>
+	<span v-if="user.host || detail || $store.state.showFullAcct" style="opacity: 0.5;">@{{ user.host || host }}</span>
 </span>
 </template>
 
@@ -18,10 +18,3 @@ defineProps<{
 const host = toUnicode(hostRaw);
 </script>
 
-<style lang="scss" scoped>
-.mk-acct {
-	> .host {
-		opacity: 0.5;
-	}
-}
-</style>