Fixes Bedbuckling to avoid Floor is Lava (#37752)

* Update floor_is_lava.dm

* Pulls the check out of the loop.

code/datums/weather/weather_types/floor_is_lava.dm

@@ -25,8 +25,10 @@
 /datum/weather/floor_is_lava/weather_act(mob/living/L)
 	if(issilicon(L))
 		return
+	if(istype(L.buckled, /obj/structure/bed))
+		return
 	for(var/obj/structure/O in L.loc)
-		if(O.density || (L in O.buckled_mobs && istype(O, /obj/structure/bed)))
+		if(O.density)
 			return
 	if(L.loc.density)
 		return