Confusing UX of Persistent Storage onboarding in Welcome Screen

Reported by Daniel Moßbrucker after a training with journalists.

What we have currently:

Screenshot_Tails_from_IMG_2023-05-22_18_15_50 Screenshot_Tails_from_IMG_2023-05-22_18_16_00

The display of the button Don't Create Persistent Storage was confusing: the label on the highlighted button sounded like it was what was going to happen ("not creating").

I brainstormed a few alternatives:

Screenshot_from_2023-05-22_19-26-44

Edited by sajolida