fix: replace Nginx with Caddy to fix "premature close" error while downloading larger files

frontend/src/pages/api/[...all].tsx

@@ -12,7 +12,7 @@ export const config = {
 const { apiURL } = getConfig().serverRuntimeConfig;
 
 // A proxy to the API server only used in development.
-// In production this route gets overridden by nginx.
+// In production this route gets overridden by Caddy.
 export default (req: NextApiRequest, res: NextApiResponse) => {
   httpProxyMiddleware(req, res, {
     headers: {