Fix GH action generated docs

[ksivaman]

Description

Issue introduced in #3399, where public_docs_features in the new theme makes the cookies not save on non docs.nvidia.com domains, resulting in continuous pop-up.

Type of change

• Documentation change (change only to the documentation, either a fix or a new content)
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Infra/Build change
• Code refactoring

Changes

• Switch public_docs_features off via envvar, and set this envvar in GH actions for a clean preview.

Checklist:

• I have read and followed the contributing guidelines
• The functionality is complete
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

[greptile-apps]

Greptile Summary

This PR makes the NVIDIA Sphinx theme’s public-site integrations configurable and disables them for GitHub Actions documentation builds, preventing persistent cookie prompts on non-docs.nvidia.com deployments.

• Adds NVTE_DOCS_DISABLE_PUBLIC_FEATURES=1 to the documentation build workflow.
• Defaults public features to enabled while allowing CI-hosted documentation builds to disable them.

Confidence Score: 5/5

The PR appears safe to merge with no actionable correctness or security issues identified.

The workflow supplies the disabling value only for GitHub-hosted documentation builds, while other builds retain the previous enabled default, matching the domain-specific cookie behavior described by the change.

Important Files Changed

Filename	Overview
.github/workflows/docs.yml	Disables public documentation theme features for GitHub-hosted builds, including previews and the nightly GitHub Pages deployment.
docs/conf.py	Converts the new environment variable into the boolean theme option while preserving enabled behavior by default.

_{Reviews (1): Last reviewed commit: "Fix GH docs" | Re-trigger Greptile}