Fixed ListBox element menu getting cut off if it's near the bottom of the screen by stacking it ontop of the host element

lib/cyberarm_engine/ui/elements/list_box.rb

@@ -17,6 +17,8 @@ module CyberarmEngine
         @menu.define_singleton_method(:recalculate_menu) do
           @x = @__list_box.x
           @y = @__list_box.y + @__list_box.height
+
+          @y = @__list_box.y - height if @y + height > window.height
         end
         @menu.instance_variable_set(:"@__list_box", self)