Small UI improvements to merge request page
Make gray block under tabs identical height. Also same height have blocks on pages like Groups
etc. So this improvement is targeted for consistency in UI too
Signed-off-by: Dmitriy Zaporozhets dmitriy.zaporozhets@gmail.com
Fixes internal issues
- https://dev.gitlab.org/gitlab/gitlabhq/issues/2591
- https://dev.gitlab.org/gitlab/gitlabhq/issues/2592
cc @DouweM