LongFormPrismDID resolver wrong Verification method type

[elribonazo]

Proposed feature

We are wrongly setting the Verification method type to the curve value, secp, ed... which is wrong.

This impacts the offline first issuer as it is not able to find the right key based on the resolved DIDDocument

Feature description

These are the valid values:

export enum VerificationKeyType {
  Ed25519VerificationKey2018 = "Ed25519VerificationKey2018",
  Ed25519VerificationKey2020 = "Ed25519VerificationKey2020",
  X25519KeyAgreementKey2019 = "X25519KeyAgreementKey2019",
  X25519KeyAgreementKey2020 = "X25519KeyAgreementKey2020",
  EcdsaSecp256k1VerificationKey2019 = "EcdsaSecp256k1VerificationKey2019",
}

Anything else?

No response