Add support for Mallard+Meson modules publishing to developer.|help.gnome.org
User help documentation on developer.|help.gnome.org not updated for CMake/meson projects; Users hit 404s due to missing recent versions
Submitted by Andre Klapper
Assigned to GNOME Web maintainers
https://help.gnome.org/users/evolution/3.24/ does not even exist. (Maybe related to using CMake?) https://help.gnome.org/users/evolution/3.22/ is the last stable version. I do not know which version https://help.gnome.org/users/evolution/unstable/ actually displays.