fix(deps): upgrade Remix to 2.17.4 to patch XSS vulnerability

Remediation for GHSA-8v8x-cx79-35w7 (React Router SSR XSS in
ScrollRestoration) and GHSA-2w69-qvjg-hvjx (React Router vulnerable
to XSS via Open Redirects).

Both require @remix-run/router <=1.23.1 and @remix-run/react <=2.17.3.
This upgrade pulls in @remix-run/router 1.23.2 which contains the fix.

Closes #213

All 116 unit tests pass. TypeScript: no errors.

Author: wheeljackz