add a setting to store the password with the hint to the user that this makes things less secure **Motivation** this will help developers when developing the app because it reduces the time they have to enter the password could also help adoption as a users might get frustrated having to enter a password often. There are some use cases where this additional attack-vector does not really matter and could be traded for convenience. Ideally this setting is exposed to the contacts so they know. this is a follow up from a discussion in #587