feat: generate lightning address for isolated app (WIP)

[rolznz]

• communication in the UI
  • this is a paid service
  • generating a lightning address should be optional?
• update URL once the service is deployed

[bumi]

I somehow don't think that this a good architecture. that CreateApp has too much knowledge and does too many things. Why does CreateApp need to know when and how to create a lightning address?

I wonder how we can separate this and maybe we should make this explicit and the user needs to actively create the LN address - also the user needs to agree to the costs of it actually.

[rolznz]

Ideas: separate app for creating a lightning address? maybe this can be a good first iteration.

Enabling a feature after creating the friends & family app could be a second iteration?