Export all Props interfaces

[RobKohr]

Does your feature request relate to a specific USWDS component?

All components

What USWDS Version is this feature present in?

Current

Is your feature request related to a problem? Please describe.

I would like to create wrappers for react-uswds components to add functionality to my own project. It would make it easier if I can import the props definitions for components and extend them.

Describe the solution you'd like

add export before all Prop type interfaces

Describe alternatives you've considered

I have done copy/pasting interfaces in my own project, but that doesn't seem like a good maintainable solution.

Additional context
Created PR 2666 for this

[brandonlenz]

Thanks for the issue and PR! Closing this issue as this is a duplicate of #2587, where #2587 provides a little more guidance on the desired approach.

If you have the time to update your PR with the considerations noted in the existing issue, that would be lovely!