Complete the user registration

curl -X POST \
 /user/complete \
 --header "Content-Type: application/json" \
 --header "Authorization: Bearer <token>" \
 --data '{
    "firstName": "John",
    "lastName": "Doe",
    "company": "Acme Inc."
}'

{
  "id": "01F9Z3ZJXZQZJZJZJZJZJZJZJZ",
  "firstName": "John",
  "lastName": "Doe",
  "email": "jsmith@example.com",
  "defaultAccount": "https://example.com/",
  "createdAt": "2023-11-07T05:31:56Z",
  "confirmToken": "<string>",
  "confirmTokenValidUntil": "2023-11-07T05:31:56Z",
  "updatedAt": "2021-01-01T00:00:00+00:00",
  "confirmed": true,
  "userIdentifier": "<string>",
  "passwordEqual": true,
  "completed": true,
  "name": "<string>",
  "superAdmin": true,
  "passwordRecoveryTokenExpired": true,
  "resetPasswordToken": "<string>",
  "resetPasswordTokenExpiresAt": "2023-11-07T05:31:56Z"
}