Areas and station areas work (#20195)

Refactored sorting.
Added test to verify all horizon areas (outside exceptions) are marked
as station areas.
Added test to verify shuttle areas are not marked as station areas.
Refactored how the area sorting var is made and used.
Added a global list of all areas.

code/modules/mob/living/silicon/robot/drone/drone_console.dm

@@ -63,7 +63,7 @@
 	if(href_list["setarea"])
 		if(!call_area_names)
 			call_area_names = list()
-			for(var/area/A as anything in GLOB.all_areas)
+			for(var/area/A as anything in get_sorted_areas())
 				if(A.station_area)
 					call_area_names += A.name
 		//Probably should consider using another list, but this one will do.