Blui 5239 update test config & remove enzyme

[JeffGreiner-eaton]

Fixes BLUI-5239.

Changes proposed in this Pull Request:

• Remove Enzyme, types and adapters
• Update test setup

Screenshots / Screen Recording (if applicable)

To Test:

• checkout branch
• install dependencies
• yarn test

Any specific feedback you are looking for?

• snapshot test options (can run either or)

    // snapshot test using react-test-renderer & jest
    test('renders correctly', () => {
        const tree = renderer.create(
            <WorkflowCardBody>
                <Text>This is workflow card body content.</Text>
            </WorkflowCardBody>
        ).toJSON();
        expect(tree).toMatchSnapshot();
      });

    //   snapshot test using @testing-library/react-native & jest
      test('renders correctly', () => {
        const tree = render(
            <WorkflowCardBody>
                <Text>This is workflow card body content.</Text>
            </WorkflowCardBody>
        )
        expect(screen.toJSON()).toMatchSnapshot()
      });