chore(model gallery): add open-thoughts_openthinker2-32b

[mudler]

Description

This pull request includes an update to the gallery/index.yaml file, adding a new model entry for open-thoughts_openthinker2-32b. The most important changes include the addition of metadata and file information for the new model.

Addition of new model entry:

• Added a new model entry for open-thoughts_openthinker2-32b with relevant metadata, including name, icon, URLs, description, and overrides.
• Included file details such as filename, sha256 checksum, and URI for the new model.

Notes for Reviewers

Signed commits

• Yes, I signed my commits.

[netlify]

✅ Deploy Preview for localai ready!

Name	Link
🔨 Latest commit	263fa78
🔍 Latest deploy log	https://app.netlify.com/sites/localai/deploys/67f23f3fbb3f13000863f3e1
😎 Deploy Preview	https://deploy-preview-5128--localai.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site configuration.