VBoxLinuxAdditions for Orchid

[Thatoo]

I tried to follow https://handbook.vanillaos.org/2023/01/21/install-in-vm.html#title15 but it didn't work.
First sudo abroot sheel doesn't do anything.
I wanted to make a PR because it needs to change
cp -r /media/<username>/Vbox_GAs_<version> /tmp/vbox
into
cp -r /media/<username>/VBox_GAs_<version> /tmp/vbox
but I'm afraid this tutorial isn't for Orchid and it might need to be rewritten I guess.

sudo abroot shell doesn't work.
./VBoxLinuxAdditions.run failes and
/sbin/rcvboxadd quicksetup all followed by reboot don't make VBoxLinuxAdditions works in Orchid.