Persistent Map Vote Tallies (#86788)

## About The Pull Request

Changes map votes to be based on a persistent tally count.
Tallies for maps are cached between rounds and are added to by map
votes.
When a map is chosen, and it wasn't the only valid one, the tallies for
said chosen map will be reset.

Refactors map vote handling and moves it from SSmapping to SSmap_vote.
Rock the Vote has been removed as a result of this refactor.

## Why It's Good For The Game

Makes it more likely that all maps will be played over the course of a
server instead of always being truly random.
Removes some clutter off of SSmapping.

🆑
refactor: Map Votes are now carried over between rounds. When a map vote
is actually a contest, the winning map will have its votes reset.
/🆑

code/modules/procedural_mapping/mapGenerators/repair.dm

@@ -27,7 +27,7 @@
 	// changed to allow Z cropping and that's a mess
 	var/z_offset = SSmapping.station_start
 	var/list/bounds
-	for (var/path in SSmapping.config.GetFullMapPaths())
+	for (var/path in SSmapping.current_map.GetFullMapPaths())
 		var/datum/parsed_map/parsed = load_map(
 			file(path),
 			1,