story: native form support

[jeripeierSBB]

Our custom form elements should implement the native form support.

Ref: https://www.dannymoerkerke.com/blog/web-components-can-now-be-native-form-elements/

specs:

• support reset for custom form elements

Precondition:

• Lit migration done.

Related stories:

• [ ] #3035
• [x] #3041
• [ ] #3042
• [ ] #3043
• [ ] #3062