Update async-components.js

app/soapbox/features/ui/util/async-components.js

@@ -142,6 +142,10 @@ export function Video() {
   return import(/* webpackChunkName: "features/video" */'../../video');
 }
 
+export function Audio() {
+  return import(/* webpackChunkName: "features/audio" */'../../audio');
+}
+
 export function EmbedModal() {
   return import(/* webpackChunkName: "modals/embed_modal" */'../components/embed_modal');
 }