[docker] fix docker and gpu

[seblemaguer]

It is a bit more complicated than expected, so here is the process to add in the installation file:

1. install nvidia-container-toolkit via yay
2. docker/arch doesn't support cgroups for systemd, so it needs to be fixed this way:
   1. update the file /etc/nvidia-container-runtime/config.toml by replacing no-cgroups = true with no-cgroups = false
   2. update the default grub configuration /etc/default/grub by adding this systemd.unified_cgroup_hierarchy=false to the variable GRUB_CMDLINE_LINUX_DEFAULT
   3. update grub with the following command grub-mkconfig -o /boot/grub/grub.cfg
   4. restart the computer

[markanderson96]

I will get to this later on today then