Enhance 12.6.0

Important: You must update all the servers in your cluster when applying this update. Enhanced Reinstated backup failure logging to the activity log for customers on version 12.x. Moved logic for management of local .my.cnf file to appcd service for improved performance. Local .my.cnf is now checked and repaired before each backup or restore operation. Attempting to create a central webmail website with no database role installed now generates a descriptive error. Added mitigation for incompatible collations when cloning a website from a server with MariaDB to a server with MySQL. SuperAdmin can now set admin lockdown via API to allow for automation with bearer token. /var/lib/mysql and /var/lib/docker now totally hidden from website containers. Fixed Race condition where the local .my.cnf had been modified and website files were restored before databases which prevented a restore of the database. Descriptive text for email rate limits was incorrect in English language. System commands in platform update instructions excluded from translation. Issue backing up databases with massive text rows on some versions of MariaDB.