migrate projects:services:edit to static bundle

app/assets/javascripts/dispatcher.js

@@ -53,11 +53,6 @@ var Dispatcher;
         case 'projects:merge_requests:edit':
           shortcut_handler = true;
           break;
-        case 'projects:services:edit':
-          import('./pages/projects/services/edit')
-            .then(callDefault)
-            .catch(fail);
-          break;
         case 'projects:releases:edit':
           import('./pages/projects/releases/edit')
             .then(callDefault)

app/assets/javascripts/pages/projects/services/edit/index.js

 import IntegrationSettingsForm from '~/integrations/integration_settings_form';
 import PrometheusMetrics from '~/prometheus_metrics/prometheus_metrics';
 
-export default () => {
+document.addEventListener('DOMContentLoaded', () => {
   const prometheusSettingsWrapper = document.querySelector('.js-prometheus-metrics-monitoring');
   const integrationSettingsForm = new IntegrationSettingsForm('.js-integration-settings-form');
   integrationSettingsForm.init();
@@ -10,4 +10,4 @@ export default () => {
     const prometheusMetrics = new PrometheusMetrics('.js-prometheus-metrics-monitoring');
     prometheusMetrics.loadActiveMetrics();
   }
-};
+});