chore: add video for copilot user token

[mnkiefer]

• Adds video on how to mint COPILOT_GITHUB_TOKEN for a repository owned by a user.

[Copilot]

Pull request overview

Adds an instructional video to the token reference docs showing how to mint COPILOT_GITHUB_TOKEN for user-owned repositories, and reorders the org-owned section so the video appears before the step-by-step text.

Changes:

• Embed a new video + caption under “For User-owned Repositories”.
• Adjust the org-owned section formatting (removes loop, moves explanatory text below the video).

Comments suppressed due to low confidence (2)

docs/src/content/docs/reference/tokens.md:351

• The referenced poster image /gh-aw/videos/create-pat-org-copilot.png does not exist in docs/public/videos/ (the .mp4 exists but no corresponding .png). This will lead to a 404/broken poster in the docs; add the missing PNG or update/remove the poster attribute.

    poster="/gh-aw/videos/create-pat-org-copilot.png"
    style="width: 100%; aspect-ratio: 16/9;"
  >
    <source src="/gh-aw/videos/create-pat-org-copilot.mp4" type="video/mp4">
    Your browser does not support the video tag.

docs/src/content/docs/reference/tokens.md:349

• This <video> embed is also missing the gh-aw-video-container / gh-aw-video-element structure used elsewhere (via Video.astro) and relies on inline style for sizing. For consistency with existing docs and the custom.css video styling, consider using the component (convert to MDX) or replicate its markup/classes and attributes (e.g., preload="metadata", aria-label).

<div class="gh-aw-video-wrapper">
  <video 
    controls 
    muted 
    playsinline 
    poster="/gh-aw/videos/create-pat-org-copilot.png"
    style="width: 100%; aspect-ratio: 16/9;"
  >

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[Copilot]

The referenced poster image /gh-aw/videos/create-pat-user-copilot.png does not exist in docs/public/videos/ (only the .mp4 is present). This will produce a broken poster request in the rendered docs; either add the missing PNG asset or remove/adjust the poster attribute to point at an existing file.

This issue also appears on line 347 of the same file.

[Copilot]

These new inline <video> blocks aren’t using the gh-aw-video-container / gh-aw-video-element classes (and related structure) that custom.css styles for videos, so they’ll miss the intended border radius/hover/aspect-ratio behavior and require inline styling. Consider switching this page to MDX and using the existing Video.astro component, or mirror its markup/attributes here (including preload="metadata" and an aria-label).

This issue also appears on line 342 of the same file.