[FEATURE] - Adding a Merge PDF option in tools section

[ShroudAnkit53]

✨ Feature Description

This PR introduces a Merge PDF feature that allows users to upload multiple PDF files and merge them into a single document. The tool provides a simple interface for selecting files, arranging order (optional), and downloading the merged PDF.

---

🎯 Why is this Needed?

1. Simplifies handling of multiple PDF files by combining them into one.
2. Saves time for users who need to send or store documents together.
3. Provides a useful addition to the suite of document tools already in the project.

---

📋 Possible Implementation

Frontend (HTML/CSS/JS)

1. File upload field supporting multiple PDFs.
2. Option to rearrange file order before merging.
3. “Merge PDFs” button to trigger the process.

---

📸 Mockups / Examples (if any)

---

✅ Additional Notes

[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]

@ShroudAnkit53 this feature is not needed currently