Fixes the roller_holder to work again

After the buckling rehaul, the roller holder couldn't unbuckle patients
nor collapse/collect beds. This should readd that functionality.

code/game/objects/structures/stool_bed_chair_nest/bed.dm

@@ -68,6 +68,16 @@
 	icon_state = "down"
 	anchored = 0
 
+/obj/structure/stool/bed/roller/attackby(obj/item/weapon/W as obj, mob/user as mob, params)
+	if(istype(W, /obj/item/roller_holder))
+		if(buckled_mob)
+			user_unbuckle_mob(user)
+		else
+			visible_message("[user] collapses \the [src.name].")
+			new/obj/item/roller(getturf(src))
+			qdel(src)
+	return
+
 /obj/structure/stool/bed/roller/post_buckle_mob(mob/living/M)
 	if(M == buckled_mob)
 		density = 1
@@ -93,6 +103,14 @@
 	R.add_fingerprint(user)
 	qdel(src)
 
+/obj/item/roller/attackby(obj/item/weapon/W as obj, mob/user as mob, params)
+	if(istype(W, /obj/item/roller_holder))
+		var/obj/item/roller_holder/RH = W
+		if(!RH.held)
+			user << "\blue You collect the roller bed."
+			src.loc = RH
+			RH.held = src
+
 /obj/structure/stool/bed/roller/MouseDrop(over_object, src_location, over_location)
 	..()
 	if(over_object == usr && Adjacent(usr) && (in_range(src, usr) || usr.contents.Find(src)))