Fix admin tabs splitting by default

code/modules/client/preferences.dm

@@ -172,7 +172,7 @@ GLOBAL_LIST_EMPTY(preferences_datums)
 	///Whether or not the MC tab of the Stat Panel refreshes fast. This is expensive so make sure you need it.
 	var/fast_mc_refresh = FALSE
 	///When enabled, will split the 'Admin' panel into several tabs.
-	var/split_admin_tabs = FALSE
+	var/split_admin_tabs = TRUE
 
 	/// New TGUI Preference preview
 	var/map_name = "player_pref_map"