Missing `startTransition` on auth pages

[Tobbe]

Sometimes I see this error message when logging in and when resetting the password

A component suspended while responding to synchronous input. This will cause the UI to be replaced with a loading indicator. To fix, updates that suspend should be wrapped with startTransition.

To solution seems to be to wrap navigate(routes.home()) in a startTransition, like this

  useEffect(() => {
    if (isAuthenticated) {
      startTransition(() => {
        navigate(routes.home())
      })
    }
  }, [isAuthenticated])

Change needed on LoginPage, ResetPasswordPage and SignupPage