Add slug to menu item object

Author: beltranrengifo

wp-rest-api-v2-menus.php

@@ -140,6 +140,10 @@ function wp_api_v2_menus_get_menu_items( $id ) {
 	$child_items = [];
 	// pull all child menu items into separate object
 	foreach ( $menu_items as $key => $item ) {
+		// add slug to menu items
+		$slug = basename( get_permalink($item->object_id) );
+		$item->slug = $slug;
+
 		if ( $item->menu_item_parent ) {
 			array_push( $child_items, $item );
 			unset( $menu_items[ $key ] );