Chat Application using MERN Stack

**Project title**
Chat Application using MERN Stack

**Project Description**
I would like to add an enhanced version of Chat Application.I know that there exists a chat app already but still it is not of MERN stack.
I kindly request you to add the hacktoberfest label to my project and assign this to me.

Stack
- [x] HTML
- [x] CSS
- [x] JavaScript
