Start a 4.1.x branch requiring Varbase Components ~3.1 for the Drupal ~11.4 SDC fix

Problem/Motivation

Vartheme BS5 4.0.x requires drupal/varbase_components ~3.0.0. That constraint excludes the fixed 3.1.0 release and resolves to 3.0.0-alpha4, whose page-title SDC component is invalid under Drupal 11.4's stricter component validator, causing a site-wide 500 error.

vardot/varbase_components 3.1.0 (supporting Drupal ~11.4) is now released, fixing the invalid page-title component.

Steps to reproduce

Proposed resolution

Cut a new 4.1.x branch off 4.0.x and bump drupal/varbase_components from ~3.0.0 to ~3.1 in composer.json, so the theme resolves against the fixed Varbase Components 3.1.0 release on Drupal ~11.4.

Remaining tasks

• ✅ File an issue about this project
• ✅ Addition/Change/Update/Fix to this project
• ✅ Testing to ensure no regression
• ➖ Automated unit/functional testing coverage
• ➖ Developer Documentation support on feature change/addition
• ➖ User Guide Documentation support on feature change/addition
• ➖ UX/UI designer responsibilities
• ➖ Accessibility and Readability
• ❌ Reviewed by a human
• ❌ Code review by maintainers
• ❌ Full testing and approval
• ❌ Credit contributors
• ❌ Review with the product owner
• ✅ Update Release Notes
• ✅ Release varbase-10.1.1, vartheme_bs5-4.1.0

User interface changes

• N/A

API changes

• N/A

Data model changes

• N/A

Release notes snippet

• N/A