PLT-3470: Changed all instances of user list to show full name, username, and nickname (#6994)

webapp/components/add_users_to_team/add_users_to_team.jsx

@@ -11,7 +11,7 @@ import UserStore from 'stores/user_store.jsx';
 import TeamStore from 'stores/team_store.jsx';
 
 import Constants from 'utils/constants.jsx';
-import {displayUsernameForUser} from 'utils/utils.jsx';
+import {displayEntireNameForUser} from 'utils/utils.jsx';
 import {Client4} from 'mattermost-redux/client';
 
 import PropTypes from 'prop-types';
@@ -178,7 +178,7 @@ export default class AddUsersToTeam extends React.Component {
                     className='more-modal__details'
                 >
                     <div className='more-modal__name'>
-                        {displayUsernameForUser(option)}
+                        {displayEntireNameForUser(option)}
                     </div>
                     <div className='more-modal__description'>
                         {option.email}