Merge branch 'add-applications-table-to-cluster-details' into 'master'

Import Non-EE JavaScript for Clusters Detail Page

See merge request gitlab-org/gitlab-ee!14749

ee/app/assets/javascripts/pages/admin/clusters/show/index.js

+import '~/pages/admin/clusters/show';
 import initClusterHealth from '../../../projects/clusters/show/cluster_health';
 
 document.addEventListener('DOMContentLoaded', initClusterHealth);

ee/changelogs/unreleased/add-applications-table-to-cluster-details.yml

+---
+title: Initialize Application Table on Instance-wide Cluster Details
+merge_request: 14749
+author:
+type: fixed