Error handling when getch() throws an error

Currently untested, but should work well enough. Doing this as an reference implementation.

menu_screen.py

@@ -756,9 +756,11 @@ class CursedMenu(object):
                 self.screen.addstr(16, 2, "{}'s garden is locked, but you can see in...".format(guest_garden))
         else:
             self.screen.addstr(16, 2, "i can't seem to find directions to {}...".format(guest_garden))
+        try:
             self.screen.getch()
             self.clear_info_pane()
             self.draw_plant_ascii(self.plant)
+        finally:
             self.visited_plant = None
 
     def water_on_visit(self, guest_visitor_file):