Added react router

frontend/src/components/App/index.js

@@ -1,19 +1,14 @@
 import React, { Component } from 'react';
-import logo from '../../logo.svg';
 import styles from './styles.scss';
-import Dummy from './Dummy';
+import Header from './Header';
 
 class App extends Component {
   render() {
     return (
       <div className={styles.App}>
         <header className={styles["App-header"]}>
-          <img src={logo} className={styles["App-logo"]} alt="logo" />
-          <h1 className={styles["App-title"]}><Dummy name="Hamo"/> </h1>
+          <h1 className={styles["App-title"]}><Header name="Header"/> </h1>
         </header>
-        <p className={styles["App-intro"]}>
-          To get started ba, edit <code>src/App.js</code> and save to reload.
-        </p>
       </div>
     );
   }