nostr:npub1l2vyh47mk2p0qlsku7hg0vn29faehy9hy34ygaclpn66ukqp3afqutajft and wdyt of get_nip04_key method to let apps request a nip04 shared key to avoid RPC when decrypting lots of DMs? Context: https://github.com/vitorpamplona/amethyst/issues/592#issuecomment-1840775927