Cleanup 'Cluster' to remove environment specific details (#6951)

- requestNamespaceListPermissions is infallable so no need to have the extra try/catch

- Refactor isMetricHidden method away from Cluster

- Refactor shouldShowResource out of Cluster

- Refactor isInLocalKubeconfig out of Cluster

- Remove depecrated and unused workspace from Cluster

- Refactor out kubectl as a dependency of Cluster

- Remove from cluster getter used only once

- Split out ClusterConnection from Cluster

- Also split out KubeAuthProxyServer from ContextHandler

- Rename ContextHandler to PrometheusHandler

- Cleanup onNetworkOffline/Online impls within ClusterManager

- Remove annotations from ClusterConnection

- Remove mobx annotations from Cluster

- Rename loadConfigFromFileInjectable

- Remove all uses of dead createClusterInjectionToken

- Fix type errors related to broadcastConnectionUpdate

Signed-off-by: Sebastian Malton <sebastian@malton.name>

packages/core/src/common/utils/backoff-caller.ts

@@ -25,7 +25,7 @@ export interface BackoffCallerOptions<E> {
   maxAttempts?: number;
 
   /**
-   * In miliseconds
+   * In milliseconds
    * @default 1000
    */
   initialTimeout?: number;

packages/core/src/common/utils/replace-observable-object.ts

@@ -0,0 +1,18 @@
+/**
+ * Copyright (c) OpenLens Authors. All rights reserved.
+ * Licensed under MIT License. See LICENSE in root directory for more information.
+ */
+
+import { runInAction } from "mobx";
+
+export function replaceObservableObject<Key extends string | number | symbol>(target: Partial<Record<Key, unknown>>, source: Partial<Record<Key, unknown>>): void {
+  runInAction(() => {
+    for (const key in target) {
+      if (!(key in source)) {
+        delete target[key];
+      }
+    }
+
+    Object.assign(target, source);
+  });
+}