Support field widget (Manage form display)

Problem/Motivation

Currently, this module only supports the field display, but it would be super helpful to also have field widgets (e.g. checkboxes, select, ...) filtered by published state.

Maybe instead of reimplementing them, it might make sense to alter them by adding a checkbox and filtering the values for status?

Steps to reproduce

Proposed resolution

Remaining tasks

User interface changes

API changes

Data model changes