Git commits in Moodle 3.10.5 by Shamim Rezaie

commit 88645207425c135611cf1b38b1b8be15666b3007
Author: Shamim Rezaie <shamim@moodle.com>
Date:   Mon, 31 May 2021 17:20:49 +0800
Tag:    v3.10.5

MDL-71668 editor_atto: Accissibility focus styling for Atto buttons