feat(css): adds gl-md-mr-auto utility class

mentioned in commit 8fcd92d1

mentioned in merge request status-page!893 (merged)

mentioned in merge request gitlab!142263 (merged)

mentioned in merge request gitlab-docs!4538 (merged)

mentioned in merge request gitlab-org/gitlab-services/design.gitlab.com!3704 (merged)

mentioned in merge request gitlab-org/frontend/pajamas-adoption-scanner!268 (merged)

mentioned in merge request gitlab-org/frontend/pajamas-adoption-scanner!269 (merged)

mentioned in merge request gitlab-org/frontend/playground/accessibility-scanner!21 (merged)