Open statistics for transparency

[marcsoler]

I would consider this a minor feature request, not at all being fundamental for the app itself.

It would be very interesting to publish statistical data periodically and in fully anonymised form like the Swiss FOPH does by providing:

• Number of all apps downloaded up to now
• Number of covid codes entered by users per day

The installation of the App is totally voluntarily but such data may help to convince people and increase the number of installations and therefore, success for its use.