hub: refresh

[craig-osterhout]

Description

Refreshed some Hub content:

• Updated search filters based on latest gui
• Added DHI to trusted content

https://deploy-preview-24237--docsdocker.netlify.app/docker-hub/image-library/
https://deploy-preview-24237--docsdocker.netlify.app/docker-hub/image-library/trusted-content/
https://deploy-preview-24237--docsdocker.netlify.app/docker-hub/image-library/search/
https://deploy-preview-24237--docsdocker.netlify.app/docker-hub/repos/manage/trusted-content/

Related issues or tickets

ENGDOCS-3210

Reviews

• Editorial review

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[docker-agent]

Review Summary

This PR successfully updates Docker Hub documentation to reflect new search filters and adds Docker Hardened Images (DHI) content. However, there are a couple of issues that should be addressed:

1. Medium severity: The introduction text claims Docker Hub features "three products" but the content now lists six product types
2. Low severity: Some marketing-style language has been introduced that doesn't align with Docker's documentation style guide

[docker-agent]

Review Summary

This PR successfully refreshes Docker Hub documentation by updating search filter descriptions to match the latest GUI and adding comprehensive documentation for Docker Hardened Images (DHI). The changes are accurate, well-structured, and provide valuable information to users.

All changes follow markdown syntax correctly, include proper image references, and maintain content accuracy. No critical or medium-severity issues were found.

✅ No vendored/generated content was modified
✅ No pages were removed or moved (no redirects needed)
✅ Markdown syntax is correct
✅ Content is factually accurate
✅ Links and references are valid

The documentation additions enhance the Hub content library section with clear explanations of new product types (Helm charts, Compose files, AI models) and introduce DHI as a trusted content category.