[Feature request] Warn user that secure boot is enabled and that it might cause trouble

[philippejadin]

First thank you for everything ! :-)

I don't have a solid opinion on secure boot, if it's worth it or not, but at least on my system, if it's enabled, nvidia drivers don't work (iiuc because it needs signing which according to #100 might be broken).

It would help tremendously if driver manager added an information message telling "Secure boot is enabled on your system, you might have problems installing some drivers". Bonus point if it could link to a documentation page explaining the ins and out.

I know it might be better to fix the issue, but having a warning would already help a lot and could maybe reduce support requests on the forums.

Thanks again !