fix(GlDashboardPanel): Fix title truncation

mentioned in commit 67b67bbe

mentioned in merge request status-page!903

mentioned in merge request gitlab!177765 (merged)

mentioned in merge request gitlab!177967 (closed)

mentioned in merge request gitlab!178016 (merged)

mentioned in merge request gitlab-org/editor-extensions/gitlab-jetbrains-plugin!1446 (closed)

mentioned in merge request gitlab-org/gitlab-services/design.gitlab.com!4258 (merged)

mentioned in merge request gitlab-org/gitlab-services/design.gitlab.com!4259 (merged)

mentioned in merge request gitlab-org/frontend/pajamas-adoption-scanner!361 (merged)

mentioned in merge request gitlab-org/frontend/playground/accessibility-scanner!62 (closed)

mentioned in merge request gitlab-org/editor-extensions/gitlab-jetbrains-plugin!1485 (closed)

mentioned in merge request gitlab-org/frontend/playground/accessibility-scanner!64 (merged)

mentioned in merge request gitlab-org/frontend/pajamas-adoption-scanner!367 (merged)