Move localStorage key to a constants file

ee/app/assets/javascripts/security_dashboard/components/security_reports_summary.vue

@@ -3,8 +3,7 @@ import { GlButton, GlCard, GlCollapse, GlCollapseToggleDirective, GlSprintf } fr
 import { __ } from '~/locale';
 import AccessorUtilities from '~/lib/utils/accessor';
 import { getFormattedSummary } from '../helpers';
-
-const LOCAL_STORAGE_KEY = 'hide_pipelines_security_reports_summary_details';
+import { COLLAPSE_SECURITY_REPORTS_SUMMARY_LOCAL_STORAGE_KEY as LOCAL_STORAGE_KEY } from '../constants';
 
 export default {
   name: 'SecurityReportsSummary',

ee/app/assets/javascripts/security_dashboard/constants.js

+/* eslint-disable import/prefer-default-export */
+export const COLLAPSE_SECURITY_REPORTS_SUMMARY_LOCAL_STORAGE_KEY =
+  'hide_pipelines_security_reports_summary_details';