Update index.tsx

Author: Alan

src/index.tsx

@@ -25,7 +25,6 @@ export * from './components/grid_empty';
 export * from './components/grid_item';
 export * from './components/grid';
 export * from './components/header';
-export * from './components/header_old';
 export * from './components/image_cropper';
 export * from './components/image_upload';
 export * from './components/image';
@@ -40,7 +39,6 @@ export * from './components/navigation';
 export * from './components/navigation_desktop';
 export * from './components/navigation_mobile';
 export * from './components/navigation';
-export * from './components/navigation_old';
 export * from './components/page_section';
 export * from './components/page_title';
 export * from './components/page';
@@ -65,6 +63,7 @@ export * from './components/slide_out_container';
 export * from './components/spinner';
 export * from './components/sub_navigation_menu';
 export * from './components/sub_navigation_menu_item';
+export * from './components/sub_navigation_mobile_menu';
 export * from './components/sub_resource_item';
 export * from './components/sub_resource_list';
 export * from './components/tags_selector';