Change default configs in Varbase Blog to use Vartheme BS5's components instead of the old Varbase Components logic

Problem/Motivation

#3526581: Have all Varbase Components in the Vartheme BS5 starterkit theme
#3526576: Remove all components as they were moved to Vartheme BS5 starterkit theme

Proposed resolution

• Change ui_patterns:varbase_components to ui_patterns:vartheme_bs5 in default configs.
• Change component_id: 'varbase_components: to component_id: 'vartheme_bs5: in default configs.

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-10.1.0-alpha2, varbase_blog-10.1.0-alpha4

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 #3526697 by ahmad.estaitia: Changed default configs in Varbase Blog to use Vartheme BS5's components instead of the old Varbase Components logic