Fix tray bugs (#5666)

* Make unit tests for tray behave correctly when item is disabled

Signed-off-by: Janne Savolainen <janne.savolainen@live.fi>

* Make multiple separators in tray originating from same extension not throw up

Signed-off-by: Janne Savolainen <janne.savolainen@live.fi>

src/behaviours/tray/multiple-separators-originating-from-extension.test.ts

@@ -0,0 +1,54 @@
+/**
+ * Copyright (c) OpenLens Authors. All rights reserved.
+ * Licensed under MIT License. See LICENSE in root directory for more information.
+ */
+import { LensMainExtension } from "../../extensions/lens-main-extension";
+import type { TrayMenuRegistration } from "../../main/tray/tray-menu-registration";
+import type { ApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import getRandomIdInjectable from "../../common/utils/get-random-id.injectable";
+
+describe("multiple separators originating from extension", () => {
+  let applicationBuilder: ApplicationBuilder;
+
+  beforeEach(async () => {
+    applicationBuilder = getApplicationBuilder();
+
+    applicationBuilder.beforeApplicationStart(({ mainDi }) => {
+      mainDi.unoverride(getRandomIdInjectable);
+      mainDi.permitSideEffects(getRandomIdInjectable);
+    });
+
+    await applicationBuilder.render();
+  });
+
+  it("given extension with multiple separators, when extension is enabled, does not throw", () => {
+    const someExtension = new SomeTestExtension({
+      id: "some-extension-id",
+      trayMenus: [{ type: "separator" }, { type: "separator" } ],
+    });
+
+    return expect(
+      applicationBuilder.extensions.main.enable(someExtension),
+    ).resolves.toBeUndefined();
+  });
+});
+
+class SomeTestExtension extends LensMainExtension {
+  constructor({ id, trayMenus }: {
+     id: string;
+     trayMenus: TrayMenuRegistration[];
+   }) {
+    super({
+      id,
+      absolutePath: "irrelevant",
+      isBundled: false,
+      isCompatible: false,
+      isEnabled: false,
+      manifest: { name: id, version: "some-version", engines: { lens: "^5.5.0" }},
+      manifestPath: "irrelevant",
+    });
+
+    this.trayMenus = trayMenus;
+  }
+}