center the settings relative to the sidebar

app/views/storage_settings/index.html.erb

@@ -1,6 +1,6 @@
-<div class="flex flex-wrap space-y-4 md:flex-nowrap md:space-y-0 md:space-x-16">
+<div class="flex flex-wrap space-y-4 md:flex-nowrap md:space-y-0">
   <%= render 'shared/settings_nav' %>
-  <div class="flex-grow max-w-xl">
+  <div class="flex-grow max-w-xl mx-auto">
     <h1 class="text-4xl font-bold mb-4">Storage</h1>
     <p class="mb-4">
       Select files storage option (TODO)
@@ -33,4 +33,5 @@
       </div>
     <% end %>
   </div>
+  <div class="w-0 md:w-52"></div>
 </div>