Move builds tab to admin overview

app/views/admin/builds/index.html.haml

-.top-area
+- @no_container = true
+= render "admin/dashboard/head"
+
+%div{ class: (container_class) }
+
+  .top-area
     %ul.nav-links
       %li{class: ('active' if @scope.nil?)}
         = link_to admin_builds_path do
@@ -19,10 +24,10 @@
       - if @all_builds.running_or_pending.any?
         = link_to 'Cancel all', cancel_all_admin_builds_path, data: { confirm: 'Are you sure?' }, class: 'btn btn-danger', method: :post
 
-.row-content-block.second-block
+  .row-content-block.second-block
     #{(@scope || 'all').capitalize} builds
 
-%ul.content-list
+  %ul.content-list
     - if @builds.blank?
       %li
         .nothing-here-block No builds to show

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

@@ -4,6 +4,10 @@
       = link_to admin_root_path, title: 'Overview' do
         %span
           Overview
+    = nav_link path: 'builds#index' do
+      = link_to admin_builds_path, title: 'Builds' do
+        %span
+          Builds
     = nav_link(controller: [:admin, :projects]) do
       = link_to admin_namespaces_projects_path, title: 'Projects' do
         %span

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

 %ul.nav-links.scrolling-tabs
   .fade-left
-  = nav_link(controller: %w(dashboard admin projects users groups), html_options: {class: 'home'}) do
+  = nav_link(controller: %w(dashboard admin projects users groups builds), html_options: {class: 'home'}) do
     = link_to admin_root_path, title: 'Overview', class: 'shortcuts-tree' do
       %span
         Overview
@@ -12,10 +12,6 @@
     = link_to admin_runners_path, title: 'Runners' do
       %span
         Runners
-  = nav_link path: 'builds#index' do
-    = link_to admin_builds_path, title: 'Builds' do
-      %span
-        Builds
   = nav_link(controller: %w(background_jobs logs health_check)) do
     = link_to admin_background_jobs_path, title: 'Monitoring' do
       %span