docs: remove skip link animation

[zeroedin]

What I did

1. Removed skip link animation so link doesn't animate at page load

Closes #2553

Testing Instructions

1. View Deploy Preview

Notes to Reviewers

1. If you view patternflyelements.org before this PR is merged you'll notice on page loads the skip link will animate that was unintended. This PR removes the animation all together as it really isn't needed for the links main purpose.

[changeset-bot]

⚠️ No Changeset found

Latest commit: a3fa621

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

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[github-actions]

✅ Deploy Preview for patternfly-elements ready!

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[nikkimk]

lint gets too messy