Add settings to control domain generation

[MikeAlhayek]

When a user fills out their info to subscribe, the service owner may not want the user to provide the url prefix. Since this is an opinion base settings, I would suggest that this to be a settings that can be changed. For example, I may want to use subdomain using a pattern.

You may also want to add a field called "Company Name" and that field would be used in the generation of the url. Also, one may want assign a dedicated domain, in that case we may want to give the user more instructions on how to point the custom's domain DNS. When a custom domain is added, we may need to assign an internal and external domain so that the website is accessible during the DNS change and possibly SSL Certificate adding.

[ns8482e]

The input fields are configurable as you can add/remove widgets from stepper.

Stepper will capture the values and values will be available in page events and/or setup events

It can be also made available to recipes