PLT-6474 Basic Elasticsearch System Console Page (#6825)

* PLT-6474: Basic System Console Elasticsearch Config.

* Fix review comments.

* More review fixes.

* Review comments.

webapp/routes/route_admin_console.jsx

@@ -45,6 +45,7 @@ import TeamAnalytics from 'components/analytics/team_analytics';
 import LicenseSettings from 'components/admin_console/license_settings.jsx';
 import Audits from 'components/admin_console/audits';
 import Logs from 'components/admin_console/server_logs';
+import ElasticsearchSettings from 'components/admin_console/elasticsearch_settings.jsx';
 
 export default (
     <Route>
@@ -199,6 +200,10 @@ export default (
                 path='database'
                 component={DatabaseSettings}
             />
+            <Route
+                path='elasticsearch'
+                component={ElasticsearchSettings}
+            />
             <Route
                 path='developer'
                 component={DeveloperSettings}