Replaces destroy button with close one

app/views/projects/environments/show.html.haml

@@ -10,7 +10,8 @@
       .nav-controls
         - if can?(current_user, :update_environment, @environment)
           = link_to 'Edit', edit_namespace_project_environment_path(@project.namespace, @project, @environment), class: 'btn'
-          = link_to 'Destroy', namespace_project_environment_path(@project.namespace, @project, @environment), data: { confirm: 'Are you sure you want to delete this environment?' }, class: 'btn btn-danger', method: :delete
+          / TODO: Confirm if the method is :delete
+          = link_to 'Close', namespace_project_environment_path(@project.namespace, @project, @environment), data: { confirm: 'Are you sure you want to delete this environment?' }, class: 'btn btn-danger', method: :delete
 
   - if @deployments.blank?
     .blank-state.blank-state-no-icon