fix: public key creation based on e and n

[xdubx]

Description

Fix public key creation. And add an autodiscover key for e.g. nextcloud.

example config for env vars

      LEAN_OIDC_ENABLE: "true"
      LEAN_OIDC_CREATE_USER : "true"
      LEAN_OIDC_AUTO_DISCOVER: https://replace/index.php
      LEAN_OIDC_PROVIDER_URL: https://replace # Nextcloud base URL
      LEAN_OIDC_CLIENT_ID : "replace"
      LEAN_OIDC_CLIENT_SECRET : "replace"
      LEAN_OIDC_FIELD_FIRSTNAME: "name"

Link to ticket

#2009 (comment)

Type

• Fix
• [] Feature
• Cleanup

Screenshot of the result

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All committers have signed the CLA.

[marcelfolaron]

Thank you!

[marcelfolaron]

Hurts my head that phpseclib3 is not PSR-4 compliant. :) Oh well