USWDS-Site: Publish range slider accessibility checklist

[heymatthenry]

Summary

Created the range slider accessibility checklist page as the final component in the accessibility audit.

Related issue

Closes #3129

Preview link

Preview link:

Testing and review

Follow these steps:

• Confirm that both the main component page and the accessibility tests page have the correct compliance tag at the top.
• Confirm that the main component page links to the accessibility tests page in the side navigation.
• Confirm that the main component page links to the accessibility tests page from the accessibility guidance section.
• Confirm the main component page has the correct component name in the accessibility note
• Confirm that the main component page shows the accessibility tests summary.
• Confirm the accessibility tests page has the correct component name in the lead.
• Check that accessibility tests page provides the correct counts for each test status type.
• Confirm the test checklist summaries and data are accurate.
• Confirm no visual issues.
• Confirm there is an appropriate changelog entry on both the main component page and the accessibility tests page.

[amycole501]

yml file updated with all required checks