Improves RTL configuration (#13079)

- Adds plugin:jest-dom/recommended to ESLint plugins list to enforce tests best practices

- Moves import @testing-library/jest-dom/extend-expect; from setup.ts to testing-library.tsx to avoid matchers collision

- Adds @testing-library/user-event to help simulate users events

superset-frontend/spec/javascripts/explore/components/ControlRow_spec.tsx

@@ -25,7 +25,7 @@ describe('ControlSetRow', () => {
     const { getAllByText } = render(
       <ControlSetRow controls={[<p>My Control 1</p>]} />,
     );
-    expect(getAllByText('My Control 1')).toHaveLength(1);
+    expect(getAllByText('My Control 1').length).toBe(1);
   });
   it('renders a single row with two elements', () => {
     const { getAllByText } = render(