Makes the spawn area more greytide proof (#2299)

-banners, vending machines, plants and chairs can't be moved or dismantled in the spawn area
-added access to some airlocks and buttons where it was missing
-fixed messed up windows near the lift in the main station level
-added some webbings around the ert and merc areas

code/game/objects/structures/banner.dm

@@ -39,4 +39,9 @@
 				anchored = 0
 				playsound(src.loc, 'sound/items/Ratchet.ogg', 75, 1)
 				user.visible_message("[user.name] unsecures [src.name] reinforcing bolts from the floor.", "You unsecure [src.name] from the floor.", "You hear a ratchet")
-		return
+		return
+		
+/obj/structure/banner/unmovable
+
+/obj/structure/banner/unmovable/attackby(obj/item/W, mob/user)
+	return

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

@@ -19,6 +19,7 @@
 	var/material/material
 	var/material/padding_material
 	var/base_icon = "bed"
+	var/can_dismantle = 1
 
 /obj/structure/bed/Initialize(mapload, var/new_material, var/new_padding_material)
 	. = ..()
@@ -88,9 +89,10 @@
 
 /obj/structure/bed/attackby(obj/item/weapon/W as obj, mob/user as mob)
 	if(istype(W, /obj/item/weapon/wrench))
-		playsound(src.loc, 'sound/items/Ratchet.ogg', 50, 1)
-		dismantle()
-		qdel(src)
+		if(can_dismantle)
+			playsound(src.loc, 'sound/items/Ratchet.ogg', 50, 1)
+			dismantle()
+			qdel(src)
 	else if(istype(W,/obj/item/stack))
 		if(padding_material)
 			user << "\The [src] is already padded."

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

@@ -212,3 +212,5 @@
 /obj/structure/bed/chair/wood/wings
 	icon_state = "wooden_chair_wings"
 
+/obj/structure/bed/chair/unmovable
+	can_dismantle = 0