Fix cluster.k8s.io/v1alpha1/clusters CRD not being marked as Namespaced (#5593)

src/common/k8s-api/endpoints/cluster.api.ts

@@ -10,7 +10,14 @@ import { KubeApi } from "../kube-api";
 import { isClusterPageContext } from "../../utils/cluster-id-url-parsing";
 
 export class ClusterApi extends KubeApi<Cluster> {
+  /**
+   * @deprecated This field is legacy and never used.
+   */
   static kind = "Cluster";
+
+  /**
+   * @deprecated This field is legacy and never used.
+   */
   static namespaced = true;
 }
 
@@ -98,6 +105,7 @@ export interface Cluster {
 export class Cluster extends KubeObject {
   static kind = "Cluster";
   static apiBase = "/apis/cluster.k8s.io/v1alpha1/clusters";
+  static namespaced = true;
 
   getStatus() {
     if (this.metadata.deletionTimestamp) return ClusterStatus.REMOVING;