fix: remove duplicate @keyframes and .ease-zoom-in class - Fixes #735

[ambikabains]

Pull Request Description

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Type of Change

• ✨ New animation / hover effect
• 🧩 New component
• 📝 Documentation improvement
• 🐛 Bug fix in an existing submission
• Other (describe below)

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Submission Checklist

⚠️ PRs that fail this checklist will be closed without review.

• All changes are inside submissions/examples/your-feature-name/
• Includes demo.html — self-contained, opens in browser with no server
• Includes style.css — raw CSS for the proposed feature
• Includes README.md — what it does, how to use it, why it fits EaseMotion CSS
• No changes to core/
• No changes to components/
• One feature per PR (no bundled unrelated changes)

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Feature Description

What does this add?

How does a developer use it?

<!-- Show the class usage in HTML -->

Why does it fit EaseMotion CSS?

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Demo

• Demo added (demo.html works by opening directly in a browser)

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Browser Testing

• Chrome
• Firefox
• Edge
• Safari (optional but appreciated)

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Notes for Maintainer

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Reminder: Only the repository maintainer may merge pull requests.
Do not self-merge, even if you have write access.
Maximum 2 active assigned issues per contributor — unassign extras before opening a PR.