Git commits in Moodle 3.11.1 by Thach Le Huy

commit ed48e5149b9d2fa570e92245f261f6ed3bf1c649
Author: Thach Le Huy <Thach.LeHuy@nashtechglobal.com>
Date:   Wed, 16 Jun 2021 14:49:41 +0800
Tag:    v3.11.1

MDL-71537 User tours: Minor display errors on mobile