Resolve "Health Status text displaying twice on Epic Tree"

What does this MR do?

Don't show the sm text on xl screens

before	after

Some possible alternative approaches:

1. Add d-none-xl to the short titles in vue
2. Add responsive gl-display-sm-none and friends to gitlab-ui and use those
3. Check breakpoint size with JS and render short/long/no text accordingly
4. Remove 'issues', set wrapper of icon + text to overflow hidden and don't have any conditional display based on screen size

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• Code review guidelines
• Merge request performance guidelines
• Style guides

Closes #227090 (closed)