fix(GlTabs): set a query parameter for the first tab

mentioned in commit 259b356f

mentioned in merge request gitlab-org/frontend/pajamas-adoption-scanner!116 (merged)

mentioned in merge request status-page!674 (merged)

mentioned in merge request status-page!675 (merged)

mentioned in merge request gitlab!108852 (merged)

mentioned in merge request gitlab-docs!3438 (merged)

mentioned in merge request gitlab-org/gitlab-services/design.gitlab.com!3211 (merged)

mentioned in merge request gitlab!109394 (closed)

mentioned in merge request gitlab-org/frontend/pajamas-adoption-scanner!117 (merged)