Sprocket iOS Contact/Payment Method Entry Surfaces

Added a blocking state if someone new is trying to sell a bicycle or bike part on Sprocket without having a way to contact them added to the app. We also have a way to add the same things at the bottom of the creation screen and in settings

If you like it, don't hesitate to click "L" 💗 or "F".

Hi-Fi specs for adding contact and payment methods which were used in development and subsequent hi-fi documentation