Add profile directory to web UI (#11688)

* Add profile directory to web UI

* Add a line of bio to the directory

app/javascript/mastodon/features/ui/util/async-components.js

@@ -141,3 +141,7 @@ export function Tesseract () {
 export function Audio () {
   return import(/* webpackChunkName: "features/audio" */'../../audio');
 }
+
+export function Directory () {
+  return import(/* webpackChunkName: "features/directory" */'../../directory');
+}