Add render_if_exists for sidebar and preferences

app/views/layouts/nav/sidebar/_group.html.haml

@@ -36,7 +36,7 @@
                   %span
                     = _('Activity')
 
-            = render_if_exists 'groups/sidebar/security_dashboard'
+            = render_if_exists 'groups/sidebar/security_dashboard' # EE-specific
 
             - if group_sidebar_link?(:contribution_analytics)
               = nav_link(path: 'analytics#show') do

app/views/profiles/preferences/show.html.haml

@@ -51,6 +51,9 @@
       = f.label :dashboard, class: 'label-bold' do
         Default dashboard
       = f.select :dashboard, dashboard_choices, {}, class: 'form-control'
+
+    = render_if_exists 'profiles/preferences/group_overview_selector', f: f # EE-specific
+
     .form-group
       = f.label :project_view, class: 'label-bold' do
         Project overview content