Add backtrace to Gitaly performance bar
This adds the backtrace to a table to show exactly where the Gitaly call was made to make it easier to understand where the call originated:
This change also collapses the details in the same row to improve the usability when there is a backtrace.
EE port: https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/11138
Edited by Stan Hu