fix(react-router): accept valid ReactNode as route component

[honzahruby]

In route.ts, there's a custom alias for ReactNode set to any. Based on the commit history alone, it looks like it was introduced for backward compatibility with typescript <5.1. This PR conditionally uses the real type from react if typescript >5.0 is available.

Using any allowed to pass any function as a route component, even when it wasn't a valid react component, causing a runtime crash.

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commit: 671ce5e

[honzahruby]

@SeanCassiere Would you have a look? 🙏

[SeanCassiere]

Closing this PR, as the minimum typescript version has been moved up to 5.2 as listed on the website.

@honzahruby thank you for contributing towards this! we do very much appreciate it!