Cast redirectBack return value to TypedResponse<never>

[balzdur]

Context

ATM, the current return type of redirectBack is Response, making type inference messy when doing :

const fetcher = useFetcher<typeof action>();

I changed the return type based on the one of redirect from Remix code

Example :

With my current code base were I spotted the issue

Before

After

This happen when you mix redirectBack with other return statements, like the following

export async function action({ request }: ActionFunctionArgs) {
  const formData = await request.formData();
  const submission = parse(formData);

  if (!submission.isValid) {
    return json(submission);
  }

 return redirectBack(request, {
      fallback: getRoute('/scenarios/:scenarioId', {
        scenarioId: fromUUID(submission.value.scenarioId),
      }),
    });
}