Linux Improvements (Auto Escalation, sfdisk issue)

[elibosley]

Installs fine on my Debian 12.5 machine, however I found a few things:

1 After the installation it creates a Link in the App menu but if you click on it it wont ask for higher privileges which is a bit weird because you then have to start it from the command line with su or sudo

2 EFI Boot is working perfectly fine but the script will always fail if you execute it from the USB Boot device on Linux since it will detect that the device is busy and therefore the umount will fail.

3 If I start it directly from the root shell I get an error about sfdisk but after passing over PATH=$PATH:/sbin it is working fine (could be an issue with my machines but I was able to reproduce that on my Desktop and Laptop).

[elibosley]

Main focus of this ticket is escalating using system prompts on Debian machines