profile.d: Use OpenGL ES contexts in GDK

OpenGL 2.1 contexts don't work in GDK under Wayland. We can point it to GL ES contexts instead until https://gitlab.gnome.org/GNOME/gtk/-/issues/2619 is fixed.

This can be tested by running "OpenGL Area" test in gtk3-demo.

added 9 commits

• 20069343...0a8d8ebd - 8 commits from branch Librem5:master
• 6bbe574b - profile.d: Use OpenGL ES contexts in GDK

Compare with previous version

enabled an automatic merge when the pipeline for 6bbe574b succeeds

no objections from anywhere, merging.

merged