[Feature] Add Multilevel Push Navigation Bar

[itssarvani394]

Description

I would like to add a multilevel push navigation bar in the navigation bars section that is used to organize and access different sections of the website in a hierarchical manner.

Screenshots

It would look similar to this

Checklist

• [X] I have checked the existing issues.
• [X] I follow Contributing Guidelines of this project.
• [X] I am a GSSOC'24 contributor.
• [ ] I am a IWOC'24 contributor.
• [ ] I am a JWOC'24 contributor.
• [ ] I am a SWOC'24 contributor.

Code of Conduct

• [X] I agree to follow this project's "Code of Conduct".