Add: Footer for site mapping

[karnikkanojia]

It is important as before there was no footer on the website. This PR will be adding a footer and it will be acting as a site map along with the navbar.

Fix Issue: #1

Please, go through these steps before you submit a PR.

• [x] My Pod Leader knows I'm working on this Pull Request
• [x] I've explained what the Pull Request is adding.
• [x] I've explained why this is important.

[netlify[bot]]

✅ Deploy Preview for prep-22-jul-prep-1-portfolio ready!

Name	Link
🔨 Latest commit	047212116a5d52fadfda27fcb4e212d551435837
🔍 Latest deploy log	https://app.netlify.com/sites/prep-22-jul-prep-1-portfolio/deploys/62d3b53d0f3af60008bf397d
😎 Deploy Preview	https://deploy-preview-20--prep-22-jul-prep-1-portfolio.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 settings.

[karnikkanojia]

Preview for the footer ( Current one )

Another alternative

[karnikkanojia]

@varsharathore16 can you review this PR?

[varshar4]

@karnikkanojia Please resolve this conflict so I can merge the PR!

[karnikkanojia]

@varsharathore16 you can merge the PR now