[Update]: Add new Ongoing projects and update the UI of Ongoing Projects page

[NachtSpyder04]

Following are the detailed changes:-

• Better UI for Ongoing Projects page. Now instead of scrolling down, Users will be able to select the project which they want to know more about.
• Update the OngoingProjectCard function such that it can display 3D models uploaded to p3d.in by adding the link in the ongoingprojects.js in data/ directory.

Following is the link to verify the changes

https://sra-vjti-github-io-six.vercel.app/projects/ongoing/

[aPR0T0]

LGTM! Gr8 work