[NIP05] Limit abuse of NIP05 ID creation on nos

[setch-l]

We need to make sure people creating IDs can't mess with existing IDs, create inappropriate IDs, use all the IDs - leaving none for anyone else.

• Users should only be able to edit their ID using NIP98
• Restrict ID creation to happen on nos.social so others outside the app are not using it for nefarious purposes.
• Blacklist the following terms from being used as names: https://docs.google.com/document/d/1zEZYFTFNZE75uEA7cR149ab5yO1UbgATrJh33-PB4ZY/edit