docs: update Televiz getting-started page

[jsepulveda-nvidia]

Description

Small changes to the documentation after the first time user point of view.

Type of change

• Documentation update

Testing

Built with the established make command, "make current-docs".

Checklist

• I have read and understood the contribution guidelines
• I have run the linter and formatter with SKIP=check-copyright-year pre-commit run --all-files
• I have made corresponding changes to the documentation
• I have added tests that prove my fix/feature works (or explained why not)
• I have signed off all my commits (git commit -s) per the DCO

Summary by CodeRabbit

• Documentation
  • Updated Televiz getting-started examples for clearer, more consistent session configuration naming.
  • Refined the quick-start and XR-sharing snippets without changing the setup steps or behavior.

[coderabbitai]

📝 Walkthrough

Walkthrough

Updated the Televiz getting-started examples to use consistent configuration variable names. The offscreen quick start snippet now uses viz_cfg, and the XR session sharing example now uses viz_cfg for VizSessionConfig and tlop_cfg for TeleopSessionConfig, while keeping the same session wiring.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately summarizes the documentation update to the Televiz getting-started page.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch jsepulveda/docmods

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@docs/source/getting_started/televiz.rst`:
- Around line 299-304: The Televiz XR example references an undefined trackers
name when calling DeviceIOSession.get_required_extensions, so the snippet is not
runnable as written. Update the example around VizSession.create and
get_required_extensions to either define the tracker list in the snippet or use
the concrete trackers collection already established earlier in the guide,
keeping the example self-contained and consistent.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Enterprise

Run ID: ec387c2c-7093-469a-9ef9-a180d5a7d520

📥 Commits

Reviewing files that changed from the base of the PR and between c344ab9 and 736fc7f.

📒 Files selected for processing (1)

• docs/source/getting_started/televiz.rst