Native mode should be open by default if the car is parked

Today when we open the app we enter it in driver mode and at the top left we have an icon to switch in `native mode`. We could detect that the user is not driving so when we open the app it goes to native mode directly.

We could control that if needed within a setting of the app.

Furthermore it's not possible to go back in driver mode from the native mode without starting to drive. (We could introduce a gesture maybe).