Merged PR 16: Transform every single class components into functional component

This improve greatly the performance and the code cleaning.
It allows us to separate the inseparable class methods into modules functions

src/main.tsx

@@ -1,6 +1,6 @@
 import React from 'react';
 import ReactDOM from 'react-dom/client';
-import { App } from './App';
+import { App } from './Components/App/App';
 import './index.scss';
 
 ReactDOM.createRoot(document.getElementById('root') as HTMLElement).render(