Field widget schema errors

Problem/Motivation

The smartdate_datelist and smartdate_only field widgets have invalid config schema.

Steps to reproduce

With Drupal 11.2 the "LenientConfigSchemaChecker" shows warnings about invalid config schema when saving config. Save form display with smartdate_datelist and smartdate_only widget for a smart date field and note the warnings given from Config Schema checker.

Proposed resolution

Fix smart_date.schema.yml

Remaining tasks

User interface changes

API changes

Data model changes