Add preview widget documentation

[mintlify]

Added documentation for the new preview widget feature that appears on preview deployments. The widget helps users navigate and review changed files with features like status badges, search, and drag-and-drop positioning.

Files changed:

• deploy/preview-deployments.mdx - Added new "Preview widget" section describing the feature and its capabilities

---

Note

Add docs for the preview widget on preview deployments, including features, placement, and a screenshot.

• Docs:
  • Add Preview widget section in deploy/preview-deployments.mdx:
    • Describes purpose and bottom-right placement in previews.
    • Lists features: changed-files list, status badges, search, quick navigation, drag-and-drop positioning.
    • Includes screenshot image.
    • Notes it only appears on preview deployments (not production).

^{Written by Cursor Bugbot for commit f39e818. This will update automatically on new commits. Configure here.}