Emergency shuttle information display improvements (#77457)

## About The Pull Request
Emergency shuttles now:

- Display occupancy limits and prerequisites  
- Has their own folder that is split into several subfiles
- Have documentation for a few variables

## Why It's Good For The Game

![4cUSVwSNl8](https://github.com/tgstation/tgstation/assets/5195984/01cd7e10-27f6-4a7d-a9a9-88477cc93310)


## Changelog
🆑
qol: Emergency shuttle now gracefully display occupancy limits and
prerequisites in the communication console.
/🆑

code/modules/shuttle/white_ship.dm

@@ -15,19 +15,6 @@
 	. = ..()
 	AddComponent(/datum/component/gps, SPACE_SIGNAL_GPSTAG)
 
-/obj/machinery/computer/shuttle/white_ship/pod
-	name = "Salvage Pod Console"
-	desc = "Used to control the Salvage Pod."
-	circuit = /obj/item/circuitboard/computer/white_ship/pod
-	shuttleId = "whiteship_pod"
-	possible_destinations = "whiteship_pod_home;whiteship_pod_custom"
-
-/obj/machinery/computer/shuttle/white_ship/pod/recall
-	name = "Salvage Pod Recall Console"
-	desc = "Used to recall the Salvage Pod."
-	circuit = /obj/item/circuitboard/computer/white_ship/pod/recall
-	possible_destinations = "whiteship_pod_home"
-
 /obj/machinery/computer/camera_advanced/shuttle_docker/whiteship
 	name = "White Ship Navigation Computer"
 	desc = "Used to designate a precise transit location for the White Ship."
@@ -40,17 +27,6 @@
 	y_offset = -10
 	designate_time = 100
 
-/obj/machinery/computer/camera_advanced/shuttle_docker/whiteship/pod
-	name = "Salvage Pod Navigation Computer"
-	desc = "Used to designate a precise transit location for the Salvage Pod."
-	shuttleId = "whiteship_pod"
-	shuttlePortId = "whiteship_pod_custom"
-	jump_to_ports = list("whiteship_pod_home" = 1)
-	view_range = 0
-	x_offset = -2
-	y_offset = 0
-	designate_time = 0
-
 /obj/machinery/computer/camera_advanced/shuttle_docker/whiteship/Initialize(mapload)
 	. = ..()
 	GLOB.jam_on_wardec += src