Replace bcrypto dep

[mpetrunic]

We already tried this once and it didn't work but it was some time ago and some alternatives appeared.

Our bcrypto algo dependencies and proposed alternatives:

• x25519
  • https://www.npmjs.com/package/ecies-25519
• aead (chacha-poly)
  • https://www.npmjs.com/package/@stablelib/chacha20poly1305 (https://github.com/StableLib/stablelib/blob/master/packages/xchacha20poly1305/xchacha20poly1305.ts)
  • https://www.npmjs.com/package/chacha-js
• hkdf
  • https://www.npmjs.com/package/futoin-hkdf
  • https://www.npmjs.com/package/js-crypto-hkdf
  • https://www.npmjs.com/package/@stablelib/hkdf