Fix Configuration objects (content_calendar.settings) provided by varbase_content_planner already exist in active configuration

Problem/Motivation

Having the following error with automated testing on install

Configuration objects (content_calendar.settings) provided by varbase_content_planner already exist in active configuration 

Proposed resolution

Move configs to Optional and use the Module Installer Factory to import default settings and 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
• ✅ 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-9.0.13, varbase_workflow-2.0.13

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 #3351731: Fixed Configuration objects (content_calendar.settings) provided by varbase_content_planner already exist in active configuration