WIP: Fix the following style-lint errors and warnings for `app/assets/stylesheets/pages/labels.scss`

What does this MR do?

This MR fixes the stylelint errors for labels.scss

	Issue	Snippet
Before	cell	cell
After	cell	cell

Function utility used to solve same-property error

What are the relevant issue numbers?

Issue #59912 (moved)

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry for user-facing changes, or community contribution. Check the link for other scenarios.
• Documentation created/updated or follow-up review issue created
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• Separation of EE specific content

Performance 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