use webhook urls instead of encrypted configs

app/controllers/api/submitter_form_views_controller.rb

@@ -13,7 +13,10 @@ module Api
 
       SubmissionEvents.create_with_tracking_data(submitter, 'view_form', request)
 
-      SendFormViewedWebhookRequestJob.perform_async({ 'submitter_id' => submitter.id })
+      submitter.account.webhook_urls.with_event('form.viewed').each do |webhook_url|
+        SendFormViewedWebhookRequestJob.perform_async({ 'submitter_id' => submitter.id,
+                                                        'webhook_url_id' => webhook_url.id })
+      end
 
       render json: {}
     end