enable hide work space name

src/client/js/components/Admin/SlackIntegration/CustomBotWithoutProxySettings.jsx

@@ -83,8 +83,7 @@ const CustomBotWithoutProxySettings = (props) => {
               <a className="icon-fw fa fa-repeat fa-2x" onClick={ reload }></a>
             </div>
           </div>
-          <div className="card-body p-4 text-center">
-            <a className="btn btn-primary mb-5">{ slackWSNameInWithoutProxy }</a>
+          <div className="card-body p-4 text-center"> { slackWSNameInWithoutProxy && <a className="btn btn-primary mb-5">{ slackWSNameInWithoutProxy }</a>}
           </div>
         </div>
       </div>