chore: add vercel config for translations (#2664)

Author: Jinjiang

vercel.json

@@ -0,0 +1,29 @@
+{
+  "$schema": "https://openapi.vercel.sh/vercel.json",
+  "headers": [
+    {
+      "source": "/assets/(.*)",
+      "headers": [
+        {
+          "key": "Cache-Control",
+          "value": "max-age=31536000, immutable"
+        }
+      ]
+    },
+    {
+      "source": "/(.*).png",
+      "headers": [
+        {
+          "key": "Cache-Control",
+          "value": "max-age=604800, immutable"
+        }
+      ]
+    }
+  ],
+  "rewrites": [
+    {
+      "source": "/:path*",
+      "destination": "/:path*.html"
+    }
+  ]
+}