Adds shuttle parts to Catwalk tech storage (#91450)

## About The Pull Request

These parts were never added to catwalk tech storage. I put the rack
with them in the place of the table that only had a single t-ray, and
moved the t-ray to the table with the multitools.

## Why It's Good For The Game

Shuttle parts were meant to be a standard fixture of tech storages
across all maps. This PR resolves this inconcistency.

## Changelog

🆑
map: Catwalk Station's tech storage now has the same collection of
shuttle parts that other stations do.
/🆑

_maps/map_files/CatwalkStation/CatwalkStation_2023.dmm

@@ -13169,10 +13169,8 @@
 /turf/open/floor/iron/textured_large,
 /area/station/security/prison)
 "dVM" = (
-/obj/structure/table,
+/obj/structure/rack,
-/obj/item/t_scanner{
+/obj/effect/spawner/random/techstorage/custom_shuttle,
-	pixel_y = 8
-	},
 /turf/open/floor/iron/dark,
 /area/station/engineering/storage/tech)
 "dVO" = (
@@ -24133,6 +24131,9 @@
 /obj/item/multitool{
 	pixel_x = 5
 	},
+/obj/item/t_scanner{
+	pixel_y = 8
+	},
 /turf/open/floor/iron/dark,
 /area/station/engineering/storage/tech)
 "hiW" = (