changes to vercel.json

Frontend/vercel.json

 {
   "routes": [
+    {
+      "src": "/assets/(.*)",
+      "dest": "/assets/$1"
+    },
+    {
+      "src": "/(.*\\.(js|css|png|jpg|svg|ico))",
+      "dest": "/$1"
+    },
     {
       "src": "/(.*)",
       "dest": "/index.html"