Also fixes a mistake

The mining satchel of holding was meant to be a pouch of holding.

maps/submaps/surface_submaps/wilderness/AmbushBaseAlt.dmm

@@ -1078,7 +1078,7 @@
 "SW" = (
 /obj/effect/floor_decal/corner/mauve/diagonal,
 /obj/structure/table/standard,
-/obj/item/weapon/storage/bag/ore/holding,
+/obj/item/weapon/storage/pouch/holding,
 /obj/random/maintenance/research,
 /obj/random/maintenance/research,
 /turf/simulated/floor/tiled/techmaint,
@@ -1725,7 +1725,7 @@ aM
 bu
 VI
 eP
-SG
+VI
 jn
 SG
 bu
@@ -1893,7 +1893,7 @@ aM
 bu
 VI
 eP
-SG
+VI
 EP
 SG
 bu