adding removed trailing slash (#1648)

Author: thisisjofrank

server.ts

@@ -10,7 +10,7 @@ import createRoutingMiddleware from "./middleware/functionRoutes.ts";
 export const server = new Server({ root: "." });
 
 server.use(redirectsMiddleware);
-server.use(NotFoundMiddleware({ root: ".", page404: "./404" }));
+server.use(NotFoundMiddleware({ root: ".", page404: "./404/" }));
 server.use(createRoutingMiddleware());
 server.use(createGAMiddleware(server));
 server.use(apiDocumentContentTypeMiddleware);