added exports to form-component props

[realStandal]

This PR adds export statements to the prop-interfaces provided by packages/forms, making it easier to compose components which extend their functionality - or provide defaults on top of them.

[realStandal]

There are a lot of Linting errors related to prop-types. I can resolve those while I'm at it - just let me know!

[Tobbe]

There are a lot of Linting errors related to prop-types. I can resolve those while I'm at it - just let me know!

If you want that would be nice 🙂

[callingmedic911]

@realStandal @Tobbe There's an ongoing PR by @nzdjb (and a dependency issue): #3762. Just thought to let you guys know, I think you've come across the same lint issue.

[Tobbe]

Thanks for the heads-up @callingmedic911

[realStandal]

Hey @callingmedic911, thanks for calling that out! It does look like these warnings were introduced during the ESLint 7 to 8 upgrade, but it also looks like they should have been resolved. The warnings I'm seeing are slightly different than the ones in that PR - but they do look like they're being caused by the same change.

Seeing as the warnings are known about and being tracked, I'll leave fixing them out of this PR.

I'm happy with this PR as-is, if that's agreeable.