EE Backport: Support Prometheus for group-level clusters

app/assets/javascripts/clusters/components/applications.vue

@@ -389,7 +389,6 @@ export default {
         </template>
       </application-row>
       <application-row
-        v-if="isProjectCluster"
         id="prometheus"
         :logo-url="prometheusLogo"
         :title="applications.prometheus.title"

changelogs/unreleased/51963-support-prometheus-for-group-level-clusters.yml

+---
+title: Support prometheus for group level clusters
+merge_request: 27280
+author:
+type: changed

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

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

spec/frontend/clusters/components/applications_spec.js

@@ -75,7 +75,7 @@ describe('Applications', () => {
     });
 
     it('renders a row for Prometheus', () => {
-      expect(vm.$el.querySelector('.js-cluster-application-row-prometheus')).toBeNull();
+      expect(vm.$el.querySelector('.js-cluster-application-row-prometheus')).not.toBeNull();
     });
 
     it('renders a row for GitLab Runner', () => {