[Glitch] Add type annotation for DisplayName component

Port 349cae0b57 to glitch-soc

Signed-off-by: Claire <claire.github-309c@sitedethib.com>

app/javascript/flavours/glitch/features/compose/components/autosuggest_account.jsx

@@ -1,6 +1,6 @@
 import React from 'react';
 import { Avatar } from 'flavours/glitch/components/avatar';
-import DisplayName from 'flavours/glitch/components/display_name';
+import { DisplayName } from 'flavours/glitch/components/display_name';
 import ImmutablePropTypes from 'react-immutable-proptypes';
 import ImmutablePureComponent from 'react-immutable-pure-component';