Add vercel.json headers

vercel.json

@@ -1,3 +1,44 @@
 {
-  "routes": [{ "src": "/[^.]+", "dest": "/", "status": 200 }]
+  "routes": [{ "src": "/[^.]+", "dest": "/", "status": 200 }],
+  "headers": [
+    {
+      "source": "/(.*)",
+      "headers": [
+        {
+          "key": "X-Content-Type-Options",
+          "value": "nosniff"
+        },
+        {
+          "key": "X-Frame-Options",
+          "value": "DENY"
+        },
+        {
+          "key": "X-XSS-Protection",
+          "value": "1; mode=block"
+        },
+        {
+          "key": "Cache-Control",
+          "value": "public, max-age=0, s-maxage=0, must-revalidate"
+        }
+      ]
+    },
+    {
+      "source": "/manifest.webmanifest",
+      "headers": [
+        {
+          "key": "Content-Type",
+          "value": "application/manifest+json"
+        }
+      ]
+    },
+    {
+      "source": "/assets/(.*)",
+      "headers": [
+        {
+          "key": "Cache-Control",
+          "value": "public, max-age=31536000, s-maxage=31536000, immutable"
+        }
+      ]
+    }
+  ]
 }