Fix styling

CHANGELOG

@@ -17,6 +17,7 @@ v 8.10.0 (unreleased)
   - Remove unused front-end variable -> default_issues_tracker
   - Add API endpoint for a group issues !4520 (mahcsig)
   - Allow [ci skip] to be in any case and allow [skip ci]. !4785 (simon_w)
+  - Add basic system information like memory and disk usage to the admin panel
 
 v 8.9.3 (unreleased)
   - Decreased min width of screen to 1280px for pinned sidebar

app/views/admin/background_jobs/_head.html.haml

 .nav-links.sub-nav
   %ul{ class: (container_class) }
-  = nav_link(controller: :system_info) do
-    = link_to admin_system_info_path, title: 'System Info' do
-      %span
-        System Info
+    = nav_link(controller: :system_info) do
+      = link_to admin_system_info_path, title: 'System Info' do
+        %span
+          System Info
     = nav_link(controller: :background_jobs) do
       = link_to admin_background_jobs_path, title: 'Background Jobs' do
         %span

app/views/admin/system_info/show.html.haml

@@ -3,7 +3,7 @@
 = render 'admin/background_jobs/head'
 
 %div{ class: (container_class) }
-  %p
+  .prepend-top-default
   .row
     .col-sm-4
       .light-well