Fix tests

[veniversum]

Currently, the tests that we have fails. Fix or remove them.

ariadne-webapp/src/components/app.test.js

Lines 5 to 9 in 47c766a

	it('renders without crashing', () => {
	const div = document.createElement('div');
	ReactDOM.render(<App />, div);
	ReactDOM.unmountComponentAtNode(div);
	});