Update CSS-Animations.md

[AmrutaJayanti]

Related Issue

Closes #681

Description

I added CSS-Animations.md

Type of PR

• Bug fix
• Feature enhancement
• Documentation update
• Other (specify): _______________

Checklist

• I have performed a self-review of my code.
• I have read and followed the Contribution Guidelines.
• I have tested the changes thoroughly before submitting this pull request.
• I have provided relevant issue numbers, screenshots, and videos after making the changes.
• I have commented my code, particularly in hard-to-understand areas.

Resources for Guidance

Here are some resources that may be helpful as you contribute to CodeHarborHub:

• Code Harbor Hub Community Features
• Docusaurus Documentation
• React.js Documentation
• Markdown Guide
• MDX Documentation
• Mermaid Documentation

Resources for DSA Features on Our Site:

• Tabs: Switch Languages
• Line Numbering
• Math Equations

[github-actions]

Great job, @AmrutaJayanti! 🎉 Thank you for submitting your pull request to CodeHarborHub. We appreciate your contribution and enthusiasm! Our team will review it soon. If you have any questions or need further assistance, feel free to reach out. Thanks for contributing!

[AmrutaJayanti]

@ajay-dhangar I raised this PR for #3919

[deepsource-io]

Here's the code health analysis summary for commits aa408fe..08489c5. View details on DeepSource ↗.

Analysis Summary

Analyzer	Status	Summary	Link
JavaScript	✅ Success		View Check ↗

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[github-actions]

⚡️ Lighthouse Report for the Deploy Preview of this PR 🚀

🔗 Site: CodeHarborHub | Live Site

URL 🌐	Performance	Accessibility	Best Practices	SEO	📊
/	🔴 28	🟡 86	🟡 75	🟢 100	📄
/docs	🔴 49	🟢 96	🟢 96	🟢 100	📄
/docs/category/javascript	🔴 45	🟢 96	🟢 96	🟢 100	📄
/courses	🔴 44	🟢 96	🟢 96	🟢 100	📄
/courses/category/reactjs	🟡 53	🟢 96	🟢 96	🟢 100	📄
/dsa-problems	🔴 49	🟢 96	🟢 96	🟢 100	📄
/dsa-problems/category/leetcode-problems	🔴 49	🟢 96	🟢 96	🟢 100	📄
/dsa-solutions	🟡 51	🟢 96	🟢 96	🟢 100	📄
/dsa-solutions/category/leetcode-solutions	🔴 48	🟢 96	🟢 96	🟢 100	📄
/blog	🔴 35	🟢 95	🟢 96	🟢 100	📄
/showcase	🔴 49	🟢 95	🟡 75	🟡 86	📄
/community	🔴 49	🟢 96	🟢 96	🟢 100	📄
/docs/tags	🔴 42	🟢 96	🟢 96	🟡 86	📄
/product	🟡 51	🟢 96	🟢 96	🟢 100	📄

[ajay-dhangar]

Done

[AmrutaJayanti]

@ajay-dhangar as mentioned in #3919 I raised them but they were assigned level 1