Refactors area stuff (#52751)

-bitfielded a bunch of bools on /area, I left some untouched cus they get called a lot
-Unused vars
-Fixed a var pretending to be a fake bool
-Probably more

code/modules/mining/equipment/survival_pod.dm

@@ -5,7 +5,7 @@
 	dynamic_lighting = DYNAMIC_LIGHTING_FORCED
 	requires_power = FALSE
 	has_gravity = STANDARD_GRAVITY
-	valid_territory = FALSE
+	area_flags = BLOBS_ALLOWED | UNIQUE_AREA
 	flags_1 = CAN_BE_DIRTY_1
 
 //Survival Capsule

code/modules/mining/lavaland/necropolis_chests.dm

@@ -324,7 +324,7 @@
 /obj/item/warp_cube/attack_self(mob/user)
 	var/turf/current_location = get_turf(user)
 	var/area/current_area = current_location.loc
-	if(!linked || current_area.noteleport)
+	if(!linked || (current_area.area_flags & NOTELEPORT))
 		to_chat(user, "<span class='warning'>[src] fizzles uselessly.</span>")
 		return
 	if(teleporting)