Describe the bug
The updater script doesn't run on Linux Mint. It says the OS is unsupported.

To Reproduce

1. Try to run the script on a Linux Mint machine.

Expected behavior
The updater should run on Linux Mint under the Debian/Ubuntu code path, as Mint is a derivative of Ubuntu.

Desktop (please complete the following information):

• OS: Linux Mint

Additional context
"LinuxMint" is the DISTRIB_ID of Linux Mint in lsb-release, and it uses apt as the package manager.

All code paths looking for the distro will need to be updated to account for it (here, here, here, and here just to name a few).