Start an 11.0.x branch for the Webtheme Default Content module to ensure compatibility with Drupal 11

Problem/Motivation

Drupal 11.0.0-beta1 was released on 17 May 2024 by: longwave
https://www.drupal.org/project/drupal/releases/11.0.0-beta1

Proposed resolution

• Start an 11.0.x branch to support Drupal 11

Remaining tasks

• ✅ File an issue
• ✅ Addition/Change/Update/Fix
• ✅ Merge request, Patch, or Commit
• ✅ 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 webship-11.0.0-alpha1, webtheme_default_content-11.0.0-alpha1

User interface changes

• N/A

API changes

• N/A

Data model changes

• N/A

Release notes snippet

• Issue #3449828: Started an 11.0.x branch for the Webtheme Default Content module to ensure compatibility with Drupal 11