React Developer Manntrix

## index.html
<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8">
    <title>Context Bridge Example</title>
    <link rel="stylesheet" type="text/css" href="./styles.css">
  </head>
  <body>
    <main class="app">
      <button onclick="window.app.setFullscreen(true)">Enter fullscreen</button>
	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="UTF-8">
	<title>Context Bridge Example</title>
	<link rel="stylesheet" type="text/css" href="./styles.css">
	</head>
	<body>
	<main class="app">
	<button onclick="window.app.setFullscreen(true)">Enter fullscreen</button>