Media list table: Fix the categories column, hidden thanks to a typo. props...

Media list table: Fix the categories column, hidden thanks to a typo. props eddiemoya, fixes #22764. see #21240, #21391.



git-svn-id: https://core.svn.wordpress.org/trunk@23081 1a063a9b-81f0-0310-95a4-ce76da25c4cd