wawastation stand-in shuttle (#84232)

## About The Pull Request

![image](https://github.com/tgstation/tgstation/assets/70376633/1eacee70-2cdf-4d46-b653-d093d3112b7e)
"Due to a recent clerical error in the funding department, a lot of
funding went to lizard plushies. Due to the costs, Nanotrasen has
supplied a nearby garbage truck as a stand-in. Better learn how to share
spots."
## Why It's Good For The Game
every station has its shuttle

## Changelog
🆑
add: wawastation stand-in shuttle
/🆑

code/game/objects/structures/plasticflaps.dm

@@ -26,6 +26,7 @@
 	. = ..()
 	alpha = 0
 	gen_overlay()
+	air_update_turf(TRUE, TRUE)
 
 /obj/structure/plasticflaps/on_changed_z_level(turf/old_turf, turf/new_turf, same_z_layer, notify_contents)
 	if(same_z_layer)
@@ -127,10 +128,6 @@
 /obj/structure/plasticflaps/atom_deconstruct(disassembled = TRUE)
 	new /obj/item/stack/sheet/plastic/five(loc)
 
-/obj/structure/plasticflaps/Initialize(mapload)
-	. = ..()
-	air_update_turf(TRUE, TRUE)
-
 /obj/structure/plasticflaps/Destroy()
 	var/atom/oldloc = loc
 	. = ..()