Move neofetch and btop to desktop+ximper tag. Add cascadia-code font, extension-manager, switcheroo-control to default packages.

add etersoft groups etersoft/virt-machines etersoft/virt-manager etersoft/gnome-boxes etersoft/virtualbox etersoft/00_office etersoft/libreoffice-still etersoft/libreoffice-latest etersoft/01_games and others

1. The default locale is now C.UTF-8 (/root/.i18n)
2. When connecting via ssh, the locale is the one in the system we are connecting from.

That's why we need locales.

Required make-initrd 2.51.0.

Distro-developers have developed request to call this menu item
something special.

In p11 and Sisyphus, we do not build distributions with altinst.

lvm is always offered in the installer, but its support was not in
the installed system.