Docs: Add missing @global entry for list table view mode in wp_ajax_inline_save().

Props priyankabehera155.
See #40208.

git-svn-id: https://develop.svn.wordpress.org/trunk@40307 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-admin/includes/ajax-actions.php

@@ -1598,6 +1598,8 @@ function wp_ajax_sample_permalink() {
  * Ajax handler for Quick Edit saving a post from a list table.
  *
  * @since 3.1.0
+ *
+ * @global string $mode List table view mode.
  */
 function wp_ajax_inline_save() {
 	global $mode;