Fixes being able to sell camera mobs to CentCom (#31306)

* Fixes being able to sell camera mobs to CENTCOM

* Did it Ninja's way.

code/__DEFINES/is_helpers.dm

@@ -131,6 +131,8 @@
 
 #define isovermind(A) (istype(A, /mob/camera/blob))
 
+#define iscameramob(A) (istype(A, /mob/camera))
+
 //Objects
 #define isobj(A) istype(A, /obj) //override the byond proc because it returns true on children of /atom/movable that aren't objs
 

code/__HELPERS/unsorted.dm

@@ -290,7 +290,7 @@ Turf and target are separate in case you want to teleport some distance from a t
 	var/list/pois = list()
 	for(var/mob/M in mobs)
 		if(skip_mindless && (!M.mind && !M.ckey))
-			if(!isbot(M) && !istype(M, /mob/camera) && !ismegafauna(M))
+			if(!isbot(M) && !iscameramob(M) && !ismegafauna(M))
 				continue
 		if(M.client && M.client.holder && M.client.holder.fakekey) //stealthmins
 			continue

code/modules/holodeck/area_copy.dm

@@ -104,7 +104,7 @@ GLOBAL_LIST_INIT(duplicate_forbidden_vars,list("tag","area","type","loc","locs",
 			copiedobjs += O2.GetAllContents()
 
 		for(var/mob/M in T)
-			if(istype(M, /mob/camera))
+			if(iscameramob(M))
 				continue // If we need to check for more mobs, I'll add a variable
 			var/mob/SM = DuplicateObject(M , perfectcopy=TRUE, newloc = B, holoitem=TRUE)
 			copiedobjs += SM.GetAllContents()

code/modules/shuttle/supply.dm

@@ -120,7 +120,7 @@ GLOBAL_LIST_INIT(blacklisted_cargo_types, typecacheof(list(
 	for(var/place in shuttle_areas)
 		var/area/shuttle/shuttle_area = place
 		for(var/atom/movable/AM in shuttle_area)
-			if(AM.anchored)
+			if(AM.anchored || iscameramob(AM))
 				continue
 			sold_atoms += export_item_and_contents(AM, contraband, emagged, dry_run = FALSE)