language Switcher added

package.json

@@ -9,6 +9,7 @@
     "start": "next start"
   },
   "dependencies": {
+    "@formatjs/intl-localematcher": "^0.8.0",
     "@hookform/resolvers": "^3.10.0",
     "@radix-ui/react-accordion": "1.2.2",
     "@radix-ui/react-alert-dialog": "1.1.4",
@@ -46,7 +47,9 @@
     "embla-carousel-react": "8.5.1",
     "input-otp": "1.4.1",
     "lucide-react": "^0.454.0",
+    "negotiator": "^1.0.0",
     "next": "16.0.10",
+    "next-intl": "^4.7.0",
     "next-themes": "^0.4.6",
     "react": "19.2.0",
     "react-day-picker": "9.8.0",
@@ -64,6 +67,7 @@
   },
   "devDependencies": {
     "@tailwindcss/postcss": "^4.1.9",
+    "@types/negotiator": "^0.6.4",
     "@types/node": "^22",
     "@types/react": "^19",
     "@types/react-dom": "^19",