React Router Config Helpers

`react-router-config` is a utility package designed to provide static route configuration helpers, primarily for applications using React Router v4 and v5. It allows developers to define their application's routing structure as a centralized array of route objects, which is particularly useful for scenarios such as server-side data preloading, static analysis of routes, and programmatically linking to routes. The package offers two main functions: `matchRoutes` to identify matching routes for a given URL pathname, and `renderRoutes` to render the corresponding React components based on the matched configuration. Currently at version 5.1.1, this package is considered superseded and effectively abandoned for modern React Router applications. React Router v6 and later versions, which are now at v7, have integrated similar declarative and programmatic routing APIs (like `useRoutes` and `createBrowserRouter`) directly into their core, making `react-router-config` largely obsolete. Its last publication was over six years ago, further cementing its status as an unmaintained library.