mark as opened on form view

app/controllers/api/submitter_form_views_controller.rb

@@ -8,6 +8,9 @@ module Api
     def create
       submitter = Submitter.find_by!(slug: params[:submitter_slug])
 
+      submitter.opened_at = Time.current
+      submitter.save
+
       SubmissionEvents.create_with_tracking_data(submitter, 'view_form', request)
 
       SendFormViewedWebhookRequestJob.perform_later(submitter)