fix: Scroll back button smoothly scrolling issue

[Raj-Aditya-27]

Title :The scroll-back button directly jumps to the top; it does not scroll smoothly to the top.

Issue No. : #1455

Close #1455

Description

Now go to top button is scrolling smoothly instead of jumping to the top

Video/Screenshots (mandatory)

Before:

before.webm

After:

after.webm

Type of PR

• [X] Bug fix
• [ ] Feature enhancement
• [ ] Documentation update
• [ ] Other (specify): ___

Checklist:

• [X] I have performed a self-review of my code.
• [X] I have tested the changes thoroughly before submitting this pull request.
• [X] I have provided relevant issue numbers, screenshots, and videos after making the changes.

Are you contributing under any Open-source programme?

• [X] I am contributing under GSSOC'24 Extended
• [X] I am contributing under Hacktoberfest'24

[netlify[bot]]

✅ Deploy Preview for taupe-cendol-f7e2bb ready!

Name	Link
🔨 Latest commit	63dabc025267882a2f63cbd13cda1e0065c07681
🔍 Latest deploy log	https://app.netlify.com/sites/taupe-cendol-f7e2bb/deploys/671547bfd5be7100082654b7
😎 Deploy Preview	https://deploy-preview-1550--taupe-cendol-f7e2bb.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site configuration.