Update dependency react-router to v8.4.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
react-router (source)	8.3.0 → 8.4.0

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Release Notes

remix-run/react-router (react-router)

v8.4.0

Compare Source

Minor Changes

• Deprecate the createStaticRouter({ branches }) option (#​15297)
  • createStaticRouter now caches route branches internally, ignores branches, and logs a deprecation warning when the option is provided
  • The deprecated EntryContext.branches property remains available for compatibility but is always an empty array

Patch Changes

• Prevent stale route discovery during manifest version-mismatch recovery (#​15489)
  • Keep concurrent manifest responses pending while a document reload is in progress
  • Report a discovery error when a previous reload failed to resolve a version mismatch instead of loading a stale route or reloading repeatedly
  • Fail pending requests if a document reload does not complete within five seconds or the document is restored from the back-forward cache, allowing subsequent requests to recover
• Preserve lazy route module import errors during SPA navigations instead of replacing them with a missing dataStrategy result error (#​15464)
• Switch to more granular internal router contexts to avoid unnecessary route component re-renders when unrelated data router state changes (#​15376)
  • ⚠️ This contains some breaking changes to exported UNSAFE_ contexts, so please review carefully if you are using those unsafe exports
• Correctly escape streamed RSC redirect locations in meta tag attributes (#​15491)
• Avoid unintended document.startViewTransition calls during initial hydration and router.revalidate() calls (#​15484)
• Fix SingleFetchNoResultError thrown when a fetcher revalidates against a splat route during lazy route discovery (#​15395)
  • Track discovery per fetcher load so revalidation waits for the current load's discovery, even when the fetcher key is reused, while still restarting interrupted loaders after discovery completes
• Preserve the underlying decode failure as the cause of the Unable to decode turbo-stream response error (#​15450)

Unstable Changes

⚠️ Unstable features are not recommended for production use

• Add a Data Mode future.unstable_routePatternMatching flag for more efficient route matching powered by @remix-run/route-pattern (#​15298)
  • Add an unstable_validateParams route field to reject invalid parameter values and continue matching
• Document access control requirements for RSC Server Functions (#​15490)
  • Treat every Server Function as a public endpoint that must perform all of its own access control checks
  • Recommend route actions when access control should be provided by route middleware

v8.3.1

Compare Source

Patch Changes

• Fix Expected fetcher: <key> error thrown on navigation when a fetcher is aborted during its post-action revalidation (#​15365)
• Fix lazy route discovery caching a path as discovered when the triggering navigation was aborted after the manifest response settled but before the route tree was patched, which permanently (for the session) shadowed the real route behind a catch-all or produced 404s on every subsequent visit (#​15399)
• Improve route matching performance for long paths (#​15417)
• Improve validation of action request origins (#​15419)
• Fix <ScrollRestoration> leaving history.scrollRestoration set to "auto" after a bfcache restore, which let the browser restore scroll on subsequent history traversals before the destination route had rendered (#​15397)
• Properly respect the relative option in useSubmit/fetcher.submit when resolivng the action path (#​15400)
• Add additional URL validation on client side navigations/redirects (#​15445)

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