Investigate using ElementInternals for managing form state

[jason-capsule42]

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

This looks like it may be a little heavy to implement but is probably the long term solution we need for form state management.

Let's assess what it is going to take to get this implemented and weigh the options for scheduling and prioritizing this with Product.

https://developer.mozilla.org/en-US/docs/Web/API/ElementInternals

Describe the solution you'd like

No response

Describe alternatives you've considered

No response

Additional context

No response

Exit criteria

No response