[FEATURE] - Add ACM Digital Library under the tools section

[AkshitaGarg404]

✨ Feature Description

A new card that leads the user to the act digital library

---

🎯 Why is this Needed?

The ACM Digital Library is useful because it provides access to trusted, peer-reviewed computer science research, conference papers, and cutting-edge innovations for students, researchers, and professionals.

---

📋 Possible Implementation

A new tool-card will be added to the tool-grid in tool.html

Please assign this issue to me

[github-actions]

Thank you for raising this issue!

We'll review it as soon as possible. Kindly Star the repo ⭐ We truly appreciate your contributions! ✨

Meanwhile make sure you've visited the README.md, CONTRIBUTING.md, and CODE_OF_CONDUCT.md before creating a PR for this. Also, please do NOT create a PR until this issue has been assigned to you. 😊

[supriya46788]

@AkshitaGarg404 Assigned to you

[AkshitaGarg404]

I have added this feature, kindly review #447