chore: upgrade to react-router@6.x

[MarkLyck]

Upgrade react-router to version 6.

This solves #127

[frandiox]

@MarkLyck Thanks! I can confirm this works after updating test/fixtures/react-ts-basic. However, I still need to check if it still works with vitedge package, which is wrapping this one.

I see React Router 6 is renaming the routes syntax:

• route.routes => route.children
• route.component => route.element

I wonder if we should also update the API in vite-ssr/react for this 🤔

[frandiox]

@MarkLyck Released in 0.16.0, thanks for your help!