Add One column section layout component

Problem/Motivation

Adding one column section component as a template component.

Proposed resolution

• Add oneColumnLayout.twig component file.
• Add oneColumnLayout.config.yml file.
• Add oneColumnLayout.story.yml file.
• Add oneColumnLayout.css style file.

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-10.0.0-alpha1 → , vartheme_bs5-2.0.0-alpha1 →

Varbase update type

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

User interface changes

→

API changes

• N/A

Data model changes

• N/A

Release notes snippet

• Issue #3305493 → by Abdullah Yassin → : Added One column section layout component