Achieve audited compliance for WCAG AA and associated VPAT for Moodle LMS 4.1 & 4.2

The broad process for this is:

• Have Moodle LMS audited for compliance by the external auditors - Done
• Rectify issues raised by they audit - In progress - Done
• Have auditors recheck and confirm fixes - Done
• Get WCAG certificate and update VPAT

VPAT is available: https://docs.moodle.org/404/en/VPAT