Option to disable changelog on app opening

[nocalla]

Is your feature request related to a problem? Please describe.
I don't always want to see the changelog when opening the app (though I am obviously appreciative of the ongoing work!).

Describe the solution you'd like
Please add an option to disable the changelog when opening the app.

Describe alternatives you've considered
You could disable the pop-up altogether and have the changelog visible on request only.