feat: automate config.json copying and update dependencies

- Added a script (copy_config.js) to copy config.json from the root directory to the frontend's public directory before starting the development server, building, or starting the application.
- Updated package.json scripts to include the config copying step.
- Updated dependencies in package.json, including adding web3 and ensuring tailwindcss is included in devDependencies.
- Modified tsconfig.json to include a path for the config file.
- Added a new config.json file in the public directory with API_URL, CONTRACT_ADDRESS, and ABI details for the smart contract.

crypto_clash_frontend/package.json

@@ -3,24 +3,25 @@
   "version": "0.1.0",
   "private": true,
   "scripts": {
-    "dev": "next dev",
-    "build": "next build",
-    "start": "next start",
+    "dev": "node copy_config.js && next dev",
+    "build": "node copy_config.js && next build",
+    "start": "node copy_config.js && next start",
     "lint": "eslint"
   },
   "dependencies": {
+    "next": "16.0.1",
     "react": "19.2.0",
     "react-dom": "19.2.0",
-    "next": "16.0.1"
+    "web3": "^4.16.0"
   },
   "devDependencies": {
-    "typescript": "^5",
+    "@tailwindcss/postcss": "^4",
     "@types/node": "^20",
     "@types/react": "^19",
     "@types/react-dom": "^19",
-    "@tailwindcss/postcss": "^4",
-    "tailwindcss": "^4",
     "eslint": "^9",
-    "eslint-config-next": "16.0.1"
+    "eslint-config-next": "16.0.1",
+    "tailwindcss": "^4",
+    "typescript": "^5"
   }
 }