Fix missing username conversions (#3922)

src/client/app/desktop/views/pages/deck/deck.note-column.vue

@@ -1,7 +1,7 @@
 <template>
 <x-column>
 	<span slot="header">
-		<fa :icon="['far', 'comment-alt']"/><span>{{ title }}</span>
+		<fa :icon="['far', 'comment-alt']"/><mk-user-name :user="note.user" v-if="note"/>
 	</span>
 
 	<div class="rvtscbadixhhbsczoorqoaygovdeecsx" v-if="note">
@@ -45,12 +45,6 @@ export default Vue.extend({
 		};
 	},
 
-	computed: {
-		title(): string {
-			return this.note ? Vue.filter('userName')(this.note.user) : '';
-		}
-	},
-
 	created() {
 		this.$root.api('notes/show', { noteId: this.noteId }).then(note => {
 			this.note = note;