add header

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

@@ -7,6 +7,8 @@ const OfficialBotSettings = () => {
 
   return (
     <>
+      <h2 className="admin-setting-header">{t('admin:slack_integration.official_bot_integration')}</h2>
+
       <h2 className="admin-setting-header">{t('admin:slack_integration.official_bot_settings')}</h2>
 
       <div className="my-5 mx-3">