[3dprinter-general] Bug#1085090: Bug#1085090: "KeyError: material_name" crash on cura startup

[Gregor Riepl]

> Cura crashes upon startup.
> The problem already got reported on community for cura 5.3 but is also present in cura 5.0.0-3 :
> https://community.ultimaker.com/topic/44538-cura-53-crashs-at-startup-linux/
> This problem also got reported for RedHat :
> https://bugzilla.redhat.com/show_bug.cgi?id=2252195
> 
> The patch mentioned here solves the problem :
> https://github.com/Ultimaker/Cura/pull/17642/files

Thanks for doing the research, and thanks to mhroncok for fixing the issue.

I'll add the patch to our next upload.