[MIRROR] Support button (#6968)

Co-authored-by: Casey <a.roaming.shadow@gmail.com>
Co-authored-by: Raeschen <rycoop29@gmail.com>

code/controllers/configuration.dm

@@ -129,6 +129,7 @@ var/list/gamemode_cache = list()
 	var/static/discordurl
 	var/static/rulesurl
 	var/static/mapurl
+	var/static/patreonurl
 
 	//Alert level description
 	var/static/alert_desc_green = "All threats to the station have passed. Security may not have weapons visible, privacy laws are once again fully enforced."
@@ -556,7 +557,10 @@ var/list/gamemode_cache = list()
 									
 				if ("discordurl")
 					config.discordurl = value
-				
+
+				if ("patreonurl")
+					config.patreonurl = value
+
 				if ("guest_jobban")
 					config.guest_jobban = 1