Git commits in Moodle 3.11.4 by Nathan Nguyen

commit 41868f952b2dd87e1e4486a05d9f2ea99b999453
Author: Nathan Nguyen <nathannguyen@catalyst-au.net>
Date:   Wed, 20 Oct 2021 18:25:33 +0800
Tag:    v3.11.4

MDL-72679 qtype_ddmarker: Fix incorrect positions in multiple viewportss