Reduce automatic check time from 15 to 45 seconds
Report gitlab-com/operations#42 (comment 3588320)
It looks like a file called notes is loaded every ~15 seconds which checks for updates to content on the page. This may not cause a huge performance burden, but it's something simple that may be beneficial to change to ~45 second intervals, if it's even necessary at all. I currently have 5 GitLab tabs open, meaning that I'm polling the notes endpoint 20 times per minute. These things add up.
Sid: we will check anyway when the tab gets focus
/cc @dzaporozhets @JobV