refactor: replace moment library with luxon

package.json

@@ -28,8 +28,7 @@
     "date-fns": "^3.6.0",
     "js-confetti": "^0.12.0",
     "lucide-react": "^0.469.0",
-    "moment": "^2.30.1",
-    "moment-timezone": "^0.5.46",
+    "luxon": "^3.5.0",
     "next": "15.1.3",
     "react": "^19.0.0",
     "react-confetti": "^6.2.2",
@@ -43,6 +42,7 @@
   "devDependencies": {
     "@eslint/eslintrc": "^3",
     "@tailwindcss/typography": "^0.5.15",
+    "@types/luxon": "^3.4.2",
     "@types/node": "^20.17.10",
     "@types/react": "^19",
     "@types/react-dom": "^19",