fix reqs vendors sprites (#4745)

# About the pull request

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Snowflake Reqs sprites for vendors are instanciated in map rather than
using the dedicated subtypes. This causes the sprite to revert to normal
vendor rack when you use it. Bleh.

Witness: 

![image](https://github.com/cmss13-devs/cmss13/assets/604624/c80d6182-2bc5-4776-88f3-be6caf5bf70e)


![image](https://github.com/cmss13-devs/cmss13/assets/604624/8e8da429-8514-4169-bf28-ccd8437652d5)

The attachie vendor just wasn't messed up. I'm pretty sure this already
got fixed before and was just reverted by sloppy map merging.

# Explain why it's good for the game
CM Dev gave me these cool sprites, I'm going to use all the cool
sprites!!!

# Testing Photographs and Procedure
See above.


# Changelog
:cl:
fix: Fixed incorrect Reqs vendors visuals on the Almayer. They now blend
in with the walls again.
/:cl:

code/game/machinery/vending/vendor_types/requisitions.dm

@@ -192,7 +192,7 @@
 				turf_to_vent_to = H.loc
 	return turf_to_vent_to
 
-/obj/structure/machinery/cm_vending/sorted/cargo_guns/blend
+/obj/structure/machinery/cm_vending/sorted/cargo_guns/cargo/blend
 	icon_state = "req_guns_wall"
 	tiles_with = list(
 		/obj/structure/window/framed/almayer,
@@ -296,7 +296,7 @@
 			updateUsrDialog()
 			return //We found our item, no reason to go on.
 
-/obj/structure/machinery/cm_vending/sorted/cargo_ammo/blend
+/obj/structure/machinery/cm_vending/sorted/cargo_ammo/cargo/blend
 		icon_state = "req_ammo_wall"
 		tiles_with = list(
 			/obj/structure/window/framed/almayer,

code/game/turfs/walls/wall_types.dm

@@ -24,8 +24,8 @@
 		/obj/structure/girder,
 		/obj/structure/machinery/door,
 		/obj/structure/machinery/cm_vending/sorted/attachments/blend,
-		/obj/structure/machinery/cm_vending/sorted/cargo_ammo/blend,
-		/obj/structure/machinery/cm_vending/sorted/cargo_guns/blend,
+		/obj/structure/machinery/cm_vending/sorted/cargo_ammo/cargo/blend,
+		/obj/structure/machinery/cm_vending/sorted/cargo_guns/cargo/blend,
 	)
 
 /turf/closed/wall/almayer/update_icon()

maps/map_files/USS_Almayer/USS_Almayer.dmm

@@ -22749,9 +22749,7 @@
 /turf/closed/wall/almayer,
 /area/almayer/squads/req)
 "bQS" = (
-/obj/structure/machinery/cm_vending/sorted/cargo_ammo/cargo{
-	icon_state = "req_ammo_wall"
-	},
+/obj/structure/machinery/cm_vending/sorted/cargo_ammo/cargo/blend,
 /turf/open/floor/almayer{
 	icon_state = "green"
 	},
@@ -24366,9 +24364,7 @@
 /turf/open/floor/almayer,
 /area/almayer/hallways/vehiclehangar)
 "bYa" = (
-/obj/structure/machinery/cm_vending/sorted/cargo_guns/cargo{
-	icon_state = "req_guns_wall"
-	},
+/obj/structure/machinery/cm_vending/sorted/cargo_guns/cargo/blend,
 /turf/open/floor/almayer{
 	dir = 10;
 	icon_state = "green"