refresh the path to performance bar in admin settings with the up-to-date value
What does this MR do?
In GitLab 11.4 admin settings sections were redesigned: https://about.gitlab.com/2018/10/22/gitlab-11-4-released/#improve-admin-area-settings-structure. The MR updates the path to Performance Bar in accordance with the new structure of settings.
Edited by Alexandr Tanayno