update game url to use game code directly

client/src/app/[code]/not-found.tsx

@@ -1,8 +1,8 @@
 export default function NotFound() {
   return (
     <div className="flex flex-col items-center justify-center gap-4">
-      <div className="text-2xl font-bold">Error</div>
-      <div className="text-xl">Game not found</div>
+      <div className="text-2xl font-bold">Error 404</div>
+      <div className="text-xl">Not found</div>
     </div>
   );
 }

client/src/app/[code]/page.tsx

@@ -20,7 +20,7 @@ export async function generateMetadata({ params }: { params: { code: string } })
     openGraph: {
       title: "chessu",
       description: `Play or watch a game with ${game.host?.name}`,
-      url: `https://ches.su/game/${game.code}`,
+      url: `https://ches.su/${game.code}`,
       siteName: "chessu",
       locale: "en_US",
       type: "website"

client/src/app/game/page.tsx

@@ -1,5 +0,0 @@
-import { redirect } from "next/navigation";
-
-export default function GameEmpty() {
-  redirect("/");
-}