TS: Track and plan for changes in polymorphic types

[jaketrent]

• Inventory how we handle polymorphism currently, in what components (eg, tagMenu in ActionMenu and renderContent in Scrollable)
• Record evidence of issues people have with polymorphic types that we have published

Perhaps in the future. In a week? See how teams use the types once they have them.

[EdwardIrby]

Initial findings

[EdwardIrby]

Polymorphic interviews

Recommendation: Stick with multiple props interface pattern over render props approach. Consider adopting Radix polymorphic & primitive in our code base for our own DX. This shouldn't change the existing experience but would allow us to offer an as prop for when a user wanted to change the tag type.