[ Feature request ] Add an option to configure Cine's screenshot behaviour.

[Pyrowar]

Current behaviour: Cine automatically (unprompted) creates directory in xdg picture dir called Cine Screenshots.
Expected behaviour: User should be able to either completely disable screenshot feature or set custom default screenshots directory.

[diegopvlk]

It's possible to set a custom directory for screenshots with screenshot-directory see #61
But for now the Cine Screenshots directory will still be there.