Fix MR widget alignment

What does this MR do?

Adjust the left-padding for the MR widget reports children and sub-children to be properly aligned with their parent.

This fixes an issue that was pointed out in a comment of a related issue.

This also fixes an issue with the test history badge stretching to fill the height of the issue name.

Screenshots (strongly suggested)

Before	After

Does this MR meet the acceptance criteria?

Conformity

• 📋 Does this MR need a changelog?
  • I have included a changelog entry.
  • I have not included a changelog entry because _____.
• [-] Documentation (if required)
• Code review guidelines
• Merge request performance guidelines
• Style guides
• [-] Database guides
• [-] Separation of EE specific content

Availability and Testing

• [-] Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.
• [-] Tested in all supported browsers
• [-] Informed Infrastructure department of a default or new setting change, if applicable per definition of done