Makes stairs function as before

Video: https://i.imgur.com/EvqCQux.gifv

code/modules/multiz/movement_vr.dm

@@ -1,6 +1,14 @@
 
 /mob/living/handle_fall(var/turf/landing)
 	var/mob/drop_mob= locate(/mob, loc)
+
+	if(locate(/obj/structure/stairs) in landing)
+		for(var/atom/A in landing)
+			if(!A.CanPass(src, src.loc, 1, 0))
+				return FALSE
+		Move(landing)
+		return 1
+
 	if(drop_mob && drop_mob != src && ismob(drop_mob)) //Shitload of checks. This is because the game finds various ways to screw me over.
 		drop_mob.fall_impact(src)