chore: Extract sidebar item injection token into separate package

- Add unit tests to cover custom resources sidebar items

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

packages/core/src/common/utils/composable-responsibilities/orderable/orderable.ts

@@ -1,25 +0,0 @@
-/**
- * Copyright (c) OpenLens Authors. All rights reserved.
- * Licensed under MIT License. See LICENSE in root directory for more information.
- */
-
-import { sortBy } from "lodash/fp";
-
-export interface Orderable {
-  readonly orderNumber: number;
-}
-
-export type MaybeOrderable = Orderable | object;
-
-export const orderByOrderNumber = <T extends MaybeOrderable>(maybeOrderables: T[]) =>
-  sortBy(
-    (orderable) =>
-      "orderNumber" in orderable
-        ? orderable.orderNumber
-        : Number.MAX_SAFE_INTEGER,
-    maybeOrderables,
-  );
-
-export const byOrderNumber = <T extends Orderable>(left: T, right: T) => (
-  left.orderNumber - right.orderNumber
-);