Added react router

frontend/src/components/App/Dashboard/dashboard.test.js

@@ -0,0 +1,12 @@
+import React from 'react';
+import {BrowserRouter as Router} from 'react-router-dom'
+import Dashboard from './index';
+import renderer from 'react-test-renderer';
+
+test('Dummy renders correctly', () => {
+	const component = renderer.create(
+		<Router><Dashboard/></Router>,
+	);
+	let tree = component.toJSON();
+	expect(tree).toMatchSnapshot();
+});