feat: adds bottom large rounded classes

mentioned in commit d6967dfa

mentioned in merge request gitlab-org/gitlab-services/design.gitlab.com!3352 (merged)

mentioned in merge request gitlab-org/frontend/pajamas-adoption-scanner!133 (merged)

mentioned in merge request status-page!762 (closed)

mentioned in merge request status-page!763 (closed)

mentioned in merge request gitlab-docs!3786 (merged)

mentioned in merge request gitlab-docs!3788 (merged)

mentioned in merge request gitlab!118512 (merged)

mentioned in merge request gitlab!118520 (merged)