docs(tabs-overflow): update a11y docs

[cdransf]

Description

Improving the accessibility documentation of components.

Related issue(s)

SWC-415

Author's checklist

• I have read the CONTRIBUTING and PULL_REQUESTS documents.
• I have reviewed at the Accessibility Practices for this feature, see: Aria Practices
• I have added automated tests to cover my changes.
• I have included a well-written changeset if my change needs to be published.
• I have included updated documentation if my change required it.

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Reviewer's checklist

• Includes a Github Issue with appropriate flag or Jira ticket number without a link
• Includes thoughtfully written changeset if changes suggested include patch, minor, or major features
• Automated tests cover all use cases and follow best practices for writing
• Validated on all supported browsers
• All VRTs are approved before the author can update Golden Hash

Device review

• Did it pass in Desktop?
• Did it pass in (emulated) Mobile?
• Did it pass in (emulated) iPad?

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Latest commit: 311aeda

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[github-actions]

📚 Branch Preview

• Documentation Site
• Storybook

🔍 Visual Regression Test Results

When a visual regression test fails (or has previously failed while working on this branch), its results can be found in the following URLs:

• Spectrum | Light | Medium | LTR
• Spectrum | Dark | Large | RTL
• Express | Light | Medium | LTR
• Express | Dark | Large | RTL
• Spectrum-two | Light | Medium | LTR
• Spectrum-two | Dark | Large | RTL
• High Contrast Mode | Medium | LTR

Deployed to Azure Blob Storage: pr-5621

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If the changes are unexpected, you can investigate the cause of the differences and update the code accordingly.

[github-actions]

Tachometer results

Currently, no packages are changed by this PR...

[rise-erpelding]

Would we want to mention something about how tabs overflow sets aria labels on the action buttons? It looks like the action buttons get labeled with "scroll to previous tabs" and "scroll to next tabs", that feels like it could be a nice accessibility feature to mention here.

[cdransf]

Would we want to mention something about how tabs overflow sets aria labels on the action buttons? It looks like the action buttons get labeled with "scroll to previous tabs" and "scroll to next tabs", that feels like it could be a nice accessibility feature to mention here.

Great callout! I went ahead and added a note on that. ✨