When we're running in e.g. CI, or in a virtual machine without hardware
acceleration, and we actually want to enable animations despite the
potential performance implications, change the AnimationsSettings to
only inhibit if we're a XVNC instance or not hardware accelerated if
--force-animations wasn't passed.
Still inhibit animations if there is a remote desktop session that
explicitly disables animations.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2560>
33d3a65646