Desktop+ v.2.8.5

This is a maintenance update for the stable branch of Desktop+.

Fixed:

• Fixed overlay drags being interrupted by the system laser pointer hitting other overlays This was caused by a regression in SteamVR 2, but has been worked around for the most part.

• Fixed incorrect cursor offsets on Graphics Capture combined desktop overlays

• Fixed incorrect display enumeration when there's desktops across multiple GPUs