Add Editoria11y Accessibility Checker checkbox in the Extra Components installation step in Varbase Profile Installer

Problem/Motivation

Requested by Razem

• Add the Editoria11y Accessibility Checker module to Varbase
• When installed, add default configs and permissions for the Editorial team of a Varbase site to access, and use it
• Have an option to install it when installing Varbase

Have it checked by default, to be installed in all projects

Proposed resolution

• #3394686: Add Editoria11y Accessibility Checker ~2.1.0 module
• Add Editoria11y Accessibility Checker checkbox in the Extra Components installation step
• Have it checked by default, to be installed in all projects

Have that as

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
  
  Updated
  Varbase Core

  Added the Editoria11y Accessibility Checker to the list of contributed modules

• ❌ User Guide Documentation support on feature change/addition
• ➖ UX/UI designer responsibilities
• ✅ Accessibility and Readability ( How to Achieve Accessibility Wins )
• ✅ Code review from 1 Varbase core team member
• ✅ Full testing and approval
• ✅ Credit contributors
• ✅ Review with the product owner
• ✅ Update Release Notes and Update Helper on new feature change/addition
• ✅ Release varbase-9.0.17, varbase-10.0.0-rc1

Varbase update type

• ✅ No Update
• ➖ Optional Update
• ➖ Forced Update
• ➖ Forced Update if Unchanged

User interface changes

Having the Editorial Accessibility Checker checked by default, to be installed in all projects

API changes

• N/A

Data model changes

• N/A

Release notes snippet

• Issue #3396296: Added Editoria11y Accessibility Checker checkbox in the Extra Components installation step in Varbase Profile Installer