refactor: improve tests

Rebase on top of
#1263 and
fix updated tests

Author: navinkarkera

src/library-authoring/EmptyStates.tsx

@@ -1,4 +1,3 @@
-/* eslint-disable react/require-default-props */
 import React, { useContext } from 'react';
 import { useParams } from 'react-router';
 import { FormattedMessage } from '@edx/frontend-platform/i18n';

src/library-authoring/LibraryAuthoringPage.test.tsx

@@ -228,7 +228,7 @@ describe('<LibraryAuthoringPage />', () => {
 
     // Navigate to the collections tab
     fireEvent.click(doc.getByRole('tab', { name: 'Collections' }));
-    expect(getByText('No matching collections found in this library.')).toBeInTheDocument();
+    expect(doc.getByText('No matching collections found in this library.')).toBeInTheDocument();
 
     // Go back to Home tab
     // This step is necessary to avoid the url change leak to other tests