Fix: fix failing Editor test

Enzyme 'simulate' does not seem to work correctly after upgrading react and react simple code editor.
The tests works as expected when replacing enzyme mount and simulate with React testing library implementations.

src/client/rsg-components/Editor/Editor.spec.tsx

@@ -1,4 +1,5 @@
 import React from 'react';
+import { fireEvent, render } from '@testing-library/react';
 import { shallow, mount } from 'enzyme';
 import { Editor } from './Editor';
 
@@ -9,7 +10,6 @@ const props = {
 	onChange() {},
 	code,
 };
-
 describe('Editor', () => {
 	it('should renderer and editor', () => {
 		const actual = shallow(<Editor {...props} />);
@@ -27,16 +27,10 @@ describe('Editor', () => {
 
 	it('should call onChange when textarea value changes', () => {
 		const onChange = jest.fn();
-		const actual = mount(<Editor {...props} onChange={onChange} />);
-
-		expect(actual.text()).toMatch(code);
+		const { getByText } = render(<Editor {...props} onChange={onChange} />);
 
-		// Set new value
-		actual.find('textarea').simulate('change', {
-			target: {
-				value: newCode,
-			},
-		});
+		const textarea = getByText(code);
+		fireEvent.change(textarea, { target: { value: newCode } });
 
 		expect(onChange).toBeCalledWith(newCode);
 	});