Fix missing Add heading after fresh install, which needs a clear cache to show up in Layout editing

Problem/Motivation

The Add heading button is not showing up in sections

Steps to reproduce

Give that a VLP page was created after a fresh Varbase 10.0.0-rc1 build and installation
When I go to editing the layout of the page
Then old and new created sections do not have the Add Heading action button

Proposed resolution

• Fix the logic to work with cache or not cache
• TEMP: Clear the cache after install with ./bin/drush cr

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_layout_builder-10.0.47, varbase-10.0.0-rc2, varbase_layout_builder-10.1.0-rc2

Varbase update type

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

User interface changes

After the fix

API changes

• N/A

Data model changes

• N/A

Release notes snippet

• Issue #3408146 by impol: Fixed missing Add heading after fresh install, which needs a clear cache to show up in Layout editing