update cycle_analytics_bundle to ES module syntax

app/assets/javascripts/cycle_analytics/cycle_analytics_bundle.js

@@ -4,18 +4,17 @@ import Vue from 'vue';
 import Cookies from 'js-cookie';
 import Translate from '../vue_shared/translate';
 import LimitWarningComponent from './components/limit_warning_component';
-
-require('./components/stage_code_component');
-require('./components/stage_issue_component');
-require('./components/stage_plan_component');
-require('./components/stage_production_component');
-require('./components/stage_review_component');
-require('./components/stage_staging_component');
-require('./components/stage_test_component');
-require('./components/total_time_component');
-require('./cycle_analytics_service');
-require('./cycle_analytics_store');
-require('./default_event_objects');
+import './components/stage_code_component';
+import './components/stage_issue_component';
+import './components/stage_plan_component';
+import './components/stage_production_component';
+import './components/stage_review_component';
+import './components/stage_staging_component';
+import './components/stage_test_component';
+import './components/total_time_component';
+import './cycle_analytics_service';
+import './cycle_analytics_store';
+import './default_event_objects';
 
 Vue.use(Translate);
 

app/assets/javascripts/cycle_analytics/cycle_analytics_store.js

 /* eslint-disable no-param-reassign */
-import { __ } from '../locale';
 
-require('../lib/utils/text_utility');
-const DEFAULT_EVENT_OBJECTS = require('./default_event_objects');
+import { __ } from '../locale';
+import '../lib/utils/text_utility';
+import DEFAULT_EVENT_OBJECTS from './default_event_objects';
 
 const global = window.gl || (window.gl = {});
 global.cycleAnalytics = global.cycleAnalytics || {};