[Feature Request] Transfer game state to new phone

[peterjanes]

Having recently gotten a new phone, it would be nice to be able to export (or otherwise copy) my started/completed puzzles, streak, and other statistics from the old one.

[meikpiep]

Thanks for the request, should probably be done via an import/export function.

I'm just unsure when to implement this feature, as there are tons of possible enhancements.