Fix deploy keys form

app/views/projects/deploy_keys/_form.html.haml

-= form_for [@project.namespace.becomes(Namespace), @project, @deploy_keys.new_key], url: namespace_project_deploy_keys_path, html: { class: "js-requires-input" } do |f|
+= form_for [@project.namespace.becomes(Namespace), @project, @deploy_keys.new_key], url: namespace_project_deploy_keys_path, html: { class: "js-requires-input container" } do |f|
   = form_errors(@deploy_keys.new_key)
   .form-group.row
     = f.label :title, class: "label-light"
@@ -13,12 +13,12 @@
 
   = f.fields_for :deploy_keys_projects do |deploy_keys_project_form|
     .form-group.row
-      .form-check
-        = deploy_keys_project_form.label :can_push do
-          = deploy_keys_project_form.check_box :can_push
-          %strong Write access allowed
+      = deploy_keys_project_form.label :can_push do
+        = deploy_keys_project_form.check_box :can_push
+        %strong Write access allowed
     .form-group.row
       %p.light.append-bottom-0
         Allow this key to push to repository as well? (Default only allows pull access.)
 
-  = f.submit "Add key", class: "btn-create btn"
+  .form-group.row
+    = f.submit "Add key", class: "btn-create btn"