ngit-cli : feat(login): login with nostr address via nip46

currently using patched version of rust-nostr with function to fetch

nip46 relays from nip05 providers. this patch has been merged so it

will make it into the next rust-nostr release.

https://github.com/DanConwayDev/ngit-cli/commit/397080d94d8efdf2df95a1dc8dc82d4d7070028d