Setup the Application Database

## Description

Develop the Landing Page of the Application.

## Tutorials

- [MongoDB Atlas Tutorial: Set Up a Free Tier Cluster & Import Your First Collection](https://studio3t.com/knowledge-base/articles/mongodb-atlas-tutorial/)
- [How to connect to MongoDB Atlas using Node.js](https://dev.to/dalalrohit/how-to-connect-to-mongodb-atlas-using-node-js-k9i)

## Branch Policy

Make this PR on the `dev` branch.

Create a route that shows that the Database Connection is successful and have a `.env.example` file when you make a PR which has some necessary documentation on what the user needs to fill and set up a Database Connection.

cc: @aarushivij @Aaliya7516 Let me know if you would like to work on the same. If yes, please self-assign this Issue using the `Assignees` option on the Right.