feat: add functionality to save and load preset ranges in play mode

[iamn1ck]

Hi, I use tuxguitar regularly and the play mode range selector is not always the best user experience. I added a new UI state to save and load preset ranges for the tab. The feature is almost implemented correctly, except after confirming your selection in the play mode dialog the saved preset are forgotten (see the video attached). It would also be very helpful if it could persist the presets when the app is closed and opened again, so the user does not have to keep creating the same presets every time. Any pointers on how to implement this would be appreciated.

https://github.com/helge17/tuxguitar/assets/3345597/6e2a4446-746c-4a31-9e5a-00438919efc1