feat: added setting to allow to disable ssl verification for Website RAG

[tobiassteidle]

Pull Request Checklist

• Description: Briefly describe the changes in this pull request.
• Changelog: Ensure a changelog entry following the format of Keep a Changelog is added at the bottom of the PR description.
• Documentation: Have you updated relevant documentation Open WebUI Docs, or other documentation sources?
• Code Review: Have you self-reviewed your code and addressed any coding standard issues?

---

Description

Added a setting for admins to bypass ssl verification for RAG (Websites).
Maybe also a solution for #1398 until adding truststores is supported.

---

Changelog Entry

Added

• Allow disable SSL Verification for RAG on Websites

Fixed

• [List any fixes, corrections, or bug fixes]

Changed

• Added "RAG" Settings Tab to Settings Dialog

---

Additional Information

Screenshot of the new "RAG" Tab:

• Issue feat: CA truststore support #1398
• Update environment documentation Added RAG_BYPASS_SSL_VERIFY environment Variable docs#59

[tjbck]

Thanks for the PR, Added you as a co-author!