Fix animated MFM not playing in posting form preview

packages/client/src/components/MkNotePreview.vue

@@ -6,7 +6,7 @@
 				<MkUserName :user="$i" />
 			</div>
 			<div class="body">
-				<div class="content">
+				<div class="content advancedMfm animatedMfm">
 					<Mfm :text="preprocess(text).trim()" :author="$i" :i="$i" />
 				</div>
 			</div>

packages/client/src/components/MkNoteSimple.vue

@@ -20,8 +20,6 @@ const props = defineProps<{
 	note: misskey.entities.Note;
 	pinned?: boolean;
 }>();
-
-const showContent = $ref(false);
 </script>
 
 <style lang="scss" scoped>