Arm64 (aarch64) support

[Proxy13]

grub installation process need to specific target definition.

[MatMoul]

I can't maintain it because I missing time to do it.
If anyone will try to do the job you're free to send a PR.

[Richterman]

Are you trying to do this on a rasberry pi?

rasbery pis don't use or need bootloaders as they aren't compatible with how they boot and it isn't uefi or a bios. Its special

I'm currently trying to learn bash so I can eventually create my own scripts very similair to this
@Proxy13

[Proxy13]

@Richterman Universal aarch64 devices.like MacBook M1-M2 devices.

[Proxy13]

grub-install --target=arm64-efi --efi-directory=/boot/efi --bootloader-id=arch_grub --recheck