Update integrated utils

Exit with error if sha256sums.txt was not downloaded

Add ffmpegthumbnailer

Fix bash compilation with GCC 15

Add gnome-themes-extra package

Merge pull request #222 from vitaly-zdanevich/patch-13

README.md: add that can install from gentoo-zh overlay

Add python-protobuf for Lutris

For Battle.net support.

Update GitLab link for utils

Add faugus-launcher-git

Add genymotion