[Preview] On mobile, an unintended permanent line appears beneath the breadcrumbs on all Playbook article pages and Detail pages

[aaronpowell]

[github-actions]

🟡 Contributor Reputation Check: MEDIUM risk

Check	Risk
Profile	MEDIUM
Credential audit	NONE

Maintainers: please review this contributor before merging.
See the workflow run for full details.
Automated check powered by AGT.