Replace math random with fast check

Author: Abby010

package-lock.json

@@ -64,6 +64,7 @@
     "typescript": "^5.1.6"
   },
   "dependencies": {
+    "fast-check": "^4.1.1",
     "ink": "^3.2.0",
     "react": "^17.0.2",
     "react-dom": "^17.0.2"