Makes all global variables handled by the GLOB controller (#13152)

* Handlers converted, now to fix 3532 compile errors

* 3532 compile fixes later, got runtimes on startup

* Well the server loads now atleast

* Take 2

* Oops

code/modules/admin/verbs/playsound.dm

@@ -1,4 +1,4 @@
-var/list/sounds_cache = list()
+GLOBAL_LIST_EMPTY(sounds_cache)
 
 /client/proc/stop_global_admin_sounds()
 	set category = "Event"
@@ -21,7 +21,7 @@ var/list/sounds_cache = list()
 	var/sound/uploaded_sound = sound(S, repeat = 0, wait = 1, channel = CHANNEL_ADMIN)
 	uploaded_sound.priority = 250
 
-	sounds_cache += S
+	GLOB.sounds_cache += S
 
 	if(alert("Are you sure?\nSong: [S]\nNow you can also play this sound using \"Play Server Sound\".", "Confirmation request" ,"Play", "Cancel") == "Cancel")
 		return
@@ -54,7 +54,7 @@ var/list/sounds_cache = list()
 	if(!check_rights(R_SOUNDS))	return
 
 	var/list/sounds = file2list("sound/serversound_list.txt");
-	sounds += sounds_cache
+	sounds += GLOB.sounds_cache
 
 	var/melody = input("Select a sound from the server to play", "Server sound list") as null|anything in sounds
 	if(!melody)	return
@@ -72,7 +72,7 @@ var/list/sounds_cache = list()
 	if(A != "Yep")	return
 
 	var/list/sounds = file2list("sound/serversound_list.txt");
-	sounds += sounds_cache
+	sounds += GLOB.sounds_cache
 
 	var/melody = input("Select a sound from the server to play", "Server sound list") as null|anything in sounds
 	if(!melody)	return