makes the description for origins do something (#4619)

people wrote up all these descriptions and they never ever were
displayed. awesome

:cl:
add: origin descriptions are now displayed when selecting an origin
/:cl:

code/modules/client/preferences.dm

@@ -1696,6 +1696,9 @@ var/const/MAX_SAVE_SLOTS = 10
 
 				if("origin")
 					var/choice = tgui_input_list(user, "Please choose your character's origin.", "Origin Selection", GLOB.player_origins)
+					var/datum/origin/picked_choice = GLOB.origins[choice]
+					if(tgui_alert(user, "You've selected [picked_choice.name]. [picked_choice.desc]", "Selected Origin", list("Confirm", "Cancel")) == "Cancel")
+						return
 					if(choice)
 						origin = choice