Hello Chris,
After you compiled the Angular project, you simply needs to link the js files into the page.xhtml
And insert the app-root
Then it should work as expected.
Additionally, I will present the topic regarding building SailPoint IIQ Plugin integrating with Angular frontend framework on SailPoint Developers Day (you can find the Agenda here: SailPoint Developer Community) if you are interested, feel free to join.
Best regards,
Mike