Fix badge count UI for pipelines menu item

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

app/views/layouts/nav/_project.html.haml

@@ -50,7 +50,7 @@
         = icon('ship fw')
         %span
           Pipelines
-          %span.count.ci_counter= number_with_delimiter(@project.ci_commits.running_or_pending.count)
+          %span.badge.count.ci_counter= number_with_delimiter(@project.ci_commits.running_or_pending.count)
 
   - if project_nav_tab? :builds
     = nav_link(controller: %w(builds)) do