Switch Default Hero Slider to Varbase Heroslider with Bootstrap carousel

Problem/Motivation

Moving from Slick carousel to Bootstrap carousel
Dropping support for Slick and Blazy in Varbase.

Proposed resolution

• #3426039: Switch Default Content for the Homepage with Hero Slider from Varbase Media Hero Slider to Varbase Heroslider
• #3425973: Change the status of Varbase Media Hero Slider to deprecated in favor of the new Varbase Heroslider with Bootstrap carousel

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
• ✅ 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-10.0.0-rc2

Varbase update type

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

User interface changes

• N/A

API changes

• N/A

Data model changes

• N/A

Release notes snippet

• Issue #3426073: Switched Default Hero Slider to Varbase Heroslider with Bootstrap carousel