Draft: Xdg directory specification support
A somewhat radical change to something that have been bothering me a while. Needs some discussion as it can potentially break existing users experience.
I feel like the change is necessary because polluting users home directory on systems where XDG is used is a travesty.
- Consider removing config sub directory in juci home as it only creates complexity (see 75a822b0)
- Consider automatically moving existing configuration to new location (not implemented yet)