restore package.json babel

package.json

@@ -87,6 +87,16 @@
   "optionalDependencies": {
     "nightmare": "^2.10.0"
   },
+  "babel": {
+    "presets": [
+      "@babel/preset-env",
+      "@babel/preset-react"
+    ],
+    "plugins": [
+      "transform-decorators-legacy",
+      "transform-class-properties"
+    ]
+  },
   "jest": {
     "setupFiles": [
       "<rootDir>/tests/setupTests.js"