Docs for kiosk mode

[hiroTamada]

Description

Please provide an explanation of the changes you've made:

[Describe what this PR does and why]

Implementation Checklist

• If updating our sample apps, update the info in our Quickstart
• If updating our CLI, update the info in our CLI

Testing

• mintlify dev works (see installation here)

Docs

• Link to a PR in our docs repo documenting your change (if applicable)

Visual Proof

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Related Issue

Fixes [Github issue link]

[If this corresponds to a fix from another Kernel OSS repo, include this:]

Fixes [Link to other repo]

[Replace with actual issue link, e.g., Fixes https://github.com/username/repo/issues/123]

Additional Notes

[Any additional context, concerns, or notes for reviewers]

[mesa-dot-dev]

Mesa Description

Description

This PR adds documentation for Kiosk Mode, a new feature for launching a fullscreen live view without browser UI elements.

It also clarifies that the refresh_rate parameter for viewports only applies to live view sessions.

Implementation Checklist

• If updating our sample apps, update the info in our Quickstart
• If updating our CLI, update the info in our CLI

Testing

• mintlify dev works (see installation here)

Docs

• Link to a PR in our docs repo documenting your change (if applicable)

Visual Proof

Please provide a screenshot or video demonstrating that your changes work locally:

[Drag and drop your screenshot/video here or use the following format:]
[]

Related Issue

Fixes [Github issue link]

[If this corresponds to a fix from another Kernel OSS repo, include this:]

Fixes [Link to other repo]

[Replace with actual issue link, e.g., Fixes https://github.com/username/repo/issues/123]

Additional Notes

[Any additional context, concerns, or notes for reviewers]

^{Description generated by Mesa. Update settings}

[dprevoznik]

LGTM - thanks for the quick edits!