Score and Options Menu Update

- Score menu now has a dashboard button in the center that will go to
the dashboard
- The cont. button on the score menu will go to the next level on the
list (note this will be in order of the xml sheet)
- Fixed the 'completed levels' page by not displaying difficulty level
(since now difficulty displayed by base difficulty, and this was
returning an error since the completed level list is a bunch of
different levels).
- Now can hear the change in volume for the sound effects and music on
the options page