Hard upstream sync (#6951)

* maps - none of our changes included yet i'll get them in after i finish up the rest of the sync

* sync part 1 - underscore folders in code

* controllers folder

* datums folder

* game folder

* cmon, work

* modules - admin to awaymissions

* cargo to events

* fields to lighting

* mapping > ruins

* rest of the code folder

* rest of the folders in the root directory

* DME

* fixes compiling errors. it compiles so it works

* readds map changes

* fixes dogborg module select

* fixes typo in moduleselect_alternate_icon filepath

code/controllers/subsystem/vote.dm

@@ -337,9 +337,9 @@ SUBSYSTEM_DEF(vote)
 	return 1
 
 /datum/action/vote/proc/remove_from_client()
-	if(owner && owner.client)
+	if(owner.client)
 		owner.client.player_details.player_actions -= src
 	else if(owner.ckey)
 		var/datum/player_details/P = GLOB.player_details[owner.ckey]
 		if(P)
-			P.player_actions -= src
+			P.player_actions -= src