Add beta tag to Elasticsearch (#7121)

* make Elasticsearch beta

* make Elasticsearch beta

* make Elasticsearch beta

webapp/components/admin_console/admin_sidebar.jsx

@@ -266,7 +266,7 @@ export default class AdminSidebar extends React.Component {
                     title={
                         <FormattedMessage
                             id='admin.sidebar.elasticsearch'
-                            defaultMessage='Elasticsearch'
+                            defaultMessage='Elasticsearch (Beta)'
                         />
                     }
                 />

webapp/components/admin_console/elasticsearch_settings.jsx

@@ -120,7 +120,7 @@ export default class ElasticsearchSettings extends AdminSettings {
         return (
             <FormattedMessage
                 id='admin.elasticsearch.title'
-                defaultMessage='Elasticsearch Settings'
+                defaultMessage='Elasticsearch (Beta)'
             />
         );
     }