[feature request] system-wide configuration

[Artim96]

Since it looks like this would need to be configured for every user individually, I'd like to request an option to have a system-wide configuration too. That way, in my case, I could roll out a config to all existing and future users a mapping that would allow for the key combination ctrl+alt+q to produce @, which is a very common key combination at least on QWERTZ layout keyboard, that Linux itself sadly keeps ignoring. This way moving away from Windows would be just a little more comfortable for all users.