Readds map diversity (#48446)

* Restricts map votes

* votable

* Fix novotes, define, fexist

* And one more define

code/controllers/subsystem/mapping.dm

@@ -233,7 +233,7 @@ SUBSYSTEM_DEF(mapping)
 	station_start = world.maxz + 1
 	INIT_ANNOUNCE("Loading [config.map_name]...")
 	LoadGroup(FailedZs, "Station", config.map_path, config.map_file, config.traits, ZTRAITS_STATION)
- 
+
 	if(SSdbcore.Connect())
 		var/datum/DBQuery/query_round_map_name = SSdbcore.NewQuery("UPDATE [format_table_name("round")] SET map_name = '[config.map_name]' WHERE id = [GLOB.round_id]")
 		query_round_map_name.Execute()
@@ -266,7 +266,7 @@ SUBSYSTEM_DEF(mapping)
 		fdel("_maps/custom/[config.map_file]")
 		// And as the file is now removed set the next map to default.
 		next_map_config = load_map_config(default_to_box = TRUE)
-	
+
 GLOBAL_LIST_EMPTY(the_station_areas)
 
 /datum/controller/subsystem/mapping/proc/generate_station_area_list()
@@ -285,9 +285,8 @@ GLOBAL_LIST_EMPTY(the_station_areas)
 
 /datum/controller/subsystem/mapping/proc/maprotate()
 	if(map_voted)
-		map_voted = FALSE
 		return
-	
+
 	var/players = GLOB.clients.len
 	var/list/mapvotes = list()
 	//count votes