fix(example): move react-scripts to devDependencies

Author: christopherthielen

example/package.json

@@ -7,7 +7,10 @@
     "angular": "1.7.0",
     "prop-types": "15.6.1",
     "react": "~16.4.0",
-    "react-dom": "~16.4.0",
+    "react-dom": "~16.4.0"
+  },
+  "devDependencies": {
+    "@uirouter/cypress-runner": "^1.0.7",
     "react-scripts": "1.1.4"
   },
   "version": "0.1.0",
@@ -18,8 +21,5 @@
     "eject": "react-scripts eject",
     "test": "npm run build && cypress-runner run --path build",
     "test:open": "npm run build && cypress-runner open --path build"
-  },
-  "devDependencies": {
-    "@uirouter/cypress-runner": "^1.0.7"
   }
 }