I have checked the official docs but there is no mention of how can I add social providers like Google, Apple sign in withAuthenticator clearly.

I have also applied custom UI changes and followed documentation so that I can see changes in UI.

According to Docs

If you would like to add custom styling to the UI components you can pass a custom theme object as a parameter to the withAuthenticator HOC using the instructions above:

export default withAuthenticator(App, false, [], null, MyTheme);

Now, I also need to add social providers like Google, Apple sign-in. But I can't find in documentation how can I do so?