Clean up UI, work on tutorial

resources/start_dorm.lua

@@ -89,6 +89,16 @@ game_api.set_trigger_zone_callbacks("ladder_zone001",
     nil
 )
 
+function taxi_zone001_enter_callback()
+game_api.start_dialogue("dialog_taxi001")
+game_api.call_tutorial_taxi_required()
+end
+
+game_api.set_trigger_zone_callbacks("taxi_zone001",
+    taxi_zone001_enter_callback,
+    nil
+)
+
 function on_bed_sleep()
 if (not game_api.is_night()) then
 game_api.start_dialogue("dialog_no_sleep001")