Support Drupal 10 and update all use of deprecation in the Entityqueue Form Widget module

Problem/Motivation

Drupal 10.0 development

Following with

Proposed resolution

• Support Drupal ~10 and change all deprecated packages, classes, functions, asset libraries to the Drupal 10 way
• Real physical testing with Drupal ~10
• Automated upgrade to Drupal ~10

Remaining tasks

• ✅ File an issue
• ✅ Addition/Change/Update/Fix
• ✅ Testing to ensure no regression
• ➖ Automated unit testing coverage
• ➖ Automated functional testing coverage
• ➖ UX/UI designer responsibilities
• ➖ Readability
• ➖ Accessibility
• ➖ Performance
• ➖ Security
• ➖ Documentation
• ✅ Code review by maintainers
• ✅ Full testing and approval
• ✅ Credit contributors
• ✅ Review with the product owner
• ✅ Release notes snippet
• ❌ Release entityqueue_form_widget-2.0.3

API changes

• N/A

Data model changes

• N/A

Release notes snippet

• Issue #3277447: Support Drupal 10 and update all use of deprecation in the Entityqueue Form Widget module