Improve cluster connection visibility (#4266)

src/common/cluster-types.ts

@@ -122,6 +122,14 @@ export enum ClusterStatus {
   Offline = 0,
 }
 
+/**
+ * The message format for the "cluster:<cluster-id>:connection-update" channels
+ */
+export interface KubeAuthUpdate {
+  message: string;
+  isError: boolean;
+}
+
 /**
  * The OpenLens known static metadata keys
  */
@@ -173,7 +181,6 @@ export interface ClusterState {
   disconnected: boolean;
   accessible: boolean;
   ready: boolean;
-  failureReason: string;
   isAdmin: boolean;
   allowedNamespaces: string[]
   allowedResources: string[]