Implement new UI

front/src/pages/companies/__tests__/Companies.test.tsx

@@ -0,0 +1,10 @@
+import { render } from '@testing-library/react';
+
+import { CompaniesDefault } from '../__stories__/Companies.stories';
+
+it('Checks the Companies page render', () => {
+  const { getByTestId } = render(<CompaniesDefault />);
+
+  const title = getByTestId('top-bar-title');
+  expect(title).toHaveTextContent('Companies');
+});