Saves state progress made

State not saving or resuming properly. Making progress.
Save and Load State progress

Saves and Loads the boards state properly, however, the state is only
saved if the GamePage is navigated away from first, then the app is
suspended. State is not saved if the app is suspended while GamePage is
the current page. Ask Dr. McCown about this.
Save and Load State Finished
Sound Effects

Added sound effects and a button to toggle sound on and off