Add subnav to projet audit events

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

@@ -64,7 +64,7 @@
             Members
 
     - if project_nav_tab? :settings
-      = nav_link(path: %w[projects#edit members#show integrations#show services#edit repository#show ci_cd#show pages#show]) do
+      = nav_link(path: %w[projects#edit members#show integrations#show services#edit repository#show ci_cd#show pages#show audit_events#index]) do
         = link_to edit_project_path(@project), title: 'Settings', class: 'shortcuts-tree' do
           %span
             Settings

app/views/projects/audit_events/index.html.haml

 - page_title "Audit Events"
+
+= render "projects/settings/head"
+
 %h3.page-title Project Audit Events
 %p.light Events in #{@project.path_with_namespace}