Fix #321 - Make fields full span

[yunusyerli1]

Description

Border has been removed in field-layout-component and fillRow(row) because it was dividing row in two seperate columns. field-layout .field-column-bordered class has been removed in field-layout scss because it was not being used anymore. #321

Motivation and Context

When set a field to span across both columns, the field is expected spans across both columns in Detail / Edit View.

How To Test This

In Studio, if you set a field to span across both columns, when you check this in the Detail / Edit View, the field spans across two column.

Types of changes

• [x] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Final checklist

• [x] My code follows the code style of this project found here.
• [ ] My change requires a change to the documentation.
• [x] I have read the How to Contribute guidelines.