Update dependencies to include prettier

Author: LemonDrew

frontend/package-lock.json

@@ -11,19 +11,20 @@
     "format:fix": "prettier --write ."
   },
   "dependencies": {
+    "next": "15.5.2",
     "react": "19.1.0",
-    "react-dom": "19.1.0",
-    "next": "15.5.2"
+    "react-dom": "19.1.0"
   },
   "devDependencies": {
-    "typescript": "^5",
+    "@eslint/eslintrc": "^3",
+    "@tailwindcss/postcss": "^4",
     "@types/node": "^20",
     "@types/react": "^19",
     "@types/react-dom": "^19",
-    "@tailwindcss/postcss": "^4",
-    "tailwindcss": "^4",
     "eslint": "^9",
     "eslint-config-next": "15.5.2",
-    "@eslint/eslintrc": "^3"
+    "prettier": "^3.6.2",
+    "tailwindcss": "^4",
+    "typescript": "^5"
   }
 }