Fix memory leak in unit tests (#5597)

src/renderer/components/layout/top-bar/start-state-sync.injectable.ts

@@ -0,0 +1,34 @@
+/**
+ * Copyright (c) OpenLens Authors. All rights reserved.
+ * Licensed under MIT License. See LICENSE in root directory for more information.
+ */
+import { getInjectable } from "@ogre-tools/injectable";
+import { action } from "mobx";
+import { beforeFrameStartsInjectionToken } from "../../../before-frame-starts/before-frame-starts-injection-token";
+import ipcRendererInjectable from "../../../utils/channel/ipc-renderer.injectable";
+import topBarStateInjectable from "./state.injectable";
+
+// TODO: replace with a SyncBox
+const startTopbarStateSyncInjectable = getInjectable({
+  id: "start-topbar-state-sync",
+  instantiate: (di) => {
+    const state = di.inject(topBarStateInjectable);
+    const ipcRenderer = di.inject(ipcRendererInjectable);
+
+    return {
+      run: () => {
+        ipcRenderer.on("history:can-go-back", action((event, canGoBack: boolean) => {
+          state.prevEnabled = canGoBack;
+        }));
+
+        ipcRenderer.on("history:can-go-forward", action((event, canGoForward: boolean) => {
+          state.nextEnabled = canGoForward;
+        }));
+      },
+    };
+  },
+  injectionToken: beforeFrameStartsInjectionToken,
+  causesSideEffects: true,
+});
+
+export default startTopbarStateSyncInjectable;