Missing div container on dashboard "activity" page

I noticed that the height of Activity page header is smaller that on other pages (Project, Groups etc.). After checking with Chrome DevTools I found that <div class=top-area> is missing (on other pages there is always present).

I think I found the place to fix (_activity_head.html.haml file), other *-head pages have .top-area element.

By comparing it looks so:

P.S. I try to do my best and will create a merge request 😄