Setup ESLint for Code Formatting

[Raghav983093]

Description

The project lacks a linter, leading to inconsistent code formatting.

Steps to Implement

1. Install ESLint using npm install eslint --save-dev.
2. Create a basic ESLint config file (.eslintrc.json).
3. Run ESLint and fix any formatting issues.

Expected Outcome

A more consistent and readable codebase.