Contact Search opt-in

[andrewxhill]

Is your feature request related to a problem? Please describe. We should allow users to opt-out to being searchable on the network in a single early step. "Here is how user search works... (click here to opt out of being discoverable this way)"

Describe the solution you'd like A step post-onboarding when the user is poking around in the app. Maybe first looking at contacts or groups it should be presented.

Describe alternatives you've considered single track mind