Hotkeys support w/o having to be in special groups

[Avasam]

Is your feature request related to a problem? Please describe.

Getting hotkeys working on Linux isn't the most friendly process for end-users, and requires playing around with security permissions.
X11 prevents using sudo as a workaround because then the desktop server will be from a different user (which can't be recorded)...

Describe the solution you'd like

Work out of the box. Or have a better workaround.

Describe alternatives you've considered

Completely rewrite the hotkey handling code to stop using the keyboard library.

Additional context

Extracted from #224

numpad and modifier keys are also untested atm