Cleanup.sh: detect graphics card and install appropriate driver

[F0xedb]

During the last step of the installation process we should detect if a graphics card is present and install the correct driver for it (might need to happen in calamares though)

[F0xedb]

We are not going to solve this in the calamares installer for 2 reasons:

• Some people are unaware of their gpu (and thus which driver to pick)
• If people install the wrong driver they can break their system

We will use the cleanup script to detect the gpu and use the correct driver version