Make verify to return the decoded token

[Kikobeats]

I noted verify is internally calling decode:

https://github.com/tsndr/cloudflare-worker-jwt/blob/main/src/index.ts#L210

In a user flow, normally you want to verify the code before decoding it, in this way:

await verify(token, JWT_SECRET, { throwError: true });
return decode(token).payload;

That means the token is being decode two times. A more optimal API would be return the decode value from verify:

const { decoded } = await verify(token, JWT_SECRET, { throwError: true });