Relay fixes (#19374)

Fixed certain bugs on the sensor relay as well as tidied up and moved a
few things around.

Also added a generic version of the sensor relay's large sensor suite,
for use by other away sites/ships. See IDB for the sprite.

CL:
- bugfix: Fixed the sensor relay away site having locked airlocks and
undeconstructable windows, alongside other misc changes.
- rscadd: Performed other various map tweaks and cleanup to the sensor
relay.
- imageadd: Added a generic variant of the sensor relay's sensor suite,
intended for other away sites. Replaced the sensor relay's Solarian
paintjob into its own variant.

code/modules/overmap/ships/computers/sensors.dm

@@ -654,7 +654,7 @@
 
 /obj/machinery/shipsensors/strong/relay
 	name = "\improper S-24 Beacon sensor array"
-	desc = "A vintage sensor array found on Solarian beacon relays throughout the galaxy. While it lacks deep scanning capabilities, it does have a high heat capacity."
+	desc = "A vintage sensor array of Solarian design. While it lacks deep scanning capabilities, it does have a high heat capacity."
 	icon = 'icons/obj/machinery/sensors_relay.dmi'
 	density = 1
 	layer = ABOVE_HUMAN_LAYER
@@ -673,3 +673,9 @@
 	)
 	pixel_x = -32
 	pixel_y = -16
+
+/obj/machinery/shipsensors/strong/relay/sol
+	name = "\improper S-24M Beacon sensor array"
+	desc = "A vintage sensor array found on Solarian sensor relays throughout the galaxy. While it lacks deep scanning capabilities, it does have a high heat capacity. This one is emblazoned with the fading flag of the pre-war Solarian Alliance."
+	icon = 'icons/obj/machinery/sensors_relay_sol.dmi'
+	desc_extended = ""