Function isNIP04

Checks if a string is encrypted with NIP-04 or NIP-44

See

https://github.com/nostr-protocol/nips/pull/1248#issuecomment-2437731316

isNIP04(ciphertext: string): boolean
Checks if a string is encrypted with NIP-04 or NIP-44
Parameters
- ciphertext: string
Returns boolean
See
https://github.com/nostr-protocol/nips/pull/1248#issuecomment-2437731316
- Defined in packages/core/dist/helpers/encryption.d.ts:5