Imported config files and start script from new create react app

package.json

@@ -128,5 +128,11 @@
     "presets": [
       "react-app"
     ]
-  }
+  },
+  "browserslist": [
+    ">0.2%",
+    "not dead",
+    "not ie <= 11",
+    "not op_mini all"
+  ]
 }