Some tasks were on both side, this will tidy it.
System and user config are now clearly identified.

- root dot files, shell & font
- my_user shell
- openNTP deamon

- Add config files for my_user
- Add ssh config file
- Add dotfiles for root
- Add GPS prune config (my_user)
- Add idempotence to font config

- un/install main, OS related, Desktop env. related
- add repo for signal-desktop
- remove snap packages
- upgrade all
- cache managemet