Change routing paths to use usernames in web UI (#16171)

app/javascript/mastodon/reducers/index.js

@@ -38,6 +38,7 @@ import missed_updates from './missed_updates';
 import announcements from './announcements';
 import markers from './markers';
 import picture_in_picture from './picture_in_picture';
+import accounts_map from './accounts_map';
 
 const reducers = {
   announcements,
@@ -52,6 +53,7 @@ const reducers = {
   status_lists,
   accounts,
   accounts_counters,
+  accounts_map,
   statuses,
   relationships,
   settings,