modify the file structure and included tailwind

[ASHISH-JHA94]

fix #9

Tailwind CSS Setup:

Installed Tailwind CSS, PostCSS, and Autoprefixer as dev dependencies.
Created the tailwind.config.js and postcss.config.js files.
Configured tailwind.config.js to scan src/**/*.{js,ts,jsx,tsx} for Tailwind class names.
Added Tailwind’s base, components, and utilities directives to src/styles/index.css.
App Component Adjustments:

Updated App.js to import the necessary Tailwind styles from index.css.
Added a sample Tailwind class (text-2xl,) to test Tailwind's application.

File Structure Refactor:

Refactored the file structure to organize the project into:
components/: For reusable UI components.
pages/: For individual page components.
styles/: For global styles, including index.css.
Moved related files to their respective folders to improve organization and scalability.