problem: can't validate zap publisher when lightning providers endpoints are set up incorrectly

[gsovereignty]

most of the custodial lightning providers don't have their zap endpoints set up correctly, so we can't get the authorised pubkey for zap reciepts.

possible solution: manually get all these buy zapping people and finding all the commonly used lightning service providers' pubkeys and hard code them into the client.

It's shitty but it will solve the problem for now.