* Note: Bring the Apache module to parity with the Nginx module's Debian
sites-available/sites-enabled handling: list disabled vhost files
alongside active ones, toggle their state via symlink with apachectl
configtest rollback, and delete VirtualHost blocks from inactive files.
When Virtualmin manages a vhost, defer enable/disable to Virtualmin's
own forms instead of touching the symlink directly.
https://forum.virtualmin.com/t/enable-disable-toggle-buttons-in-ngnix-module/137238/4?u=ilia
a5be2f9d39