[Feature Request] Add "About" button item to menu bar

[bernardus-brouwer]

Is your feature request related to a problem? Please describe.
Clicking on the menu bar the first item is "Restart onboarding...", I accidentially clicked on this and there was no confirmation dialogue.

Describe the solution you'd like

• Replace this menu bar item with the standard "About" button to show software version / update / credits / etc.
• Add a confirmation dialogue before resetting the app data.

Describe alternatives you've considered
None.

Additional context