Moving javascript driver back to platform (#3613)

webapp/components/sidebar_header.jsx

@@ -7,7 +7,7 @@ import NavbarDropdown from './navbar_dropdown.jsx';
 import PreferenceStore from 'stores/preference_store.jsx';
 
 import * as Utils from 'utils/utils.jsx';
-import Client from 'utils/web_client.jsx';
+import Client from 'client/web_client.jsx';
 import Constants from 'utils/constants.jsx';
 
 const Preferences = Constants.Preferences;