feat: update react

from 16.4.2 to 16.6.1

Author: 谢明

package.json

@@ -16,7 +16,7 @@
     "mobx-react": "^5.2.5",
     "next": "^7.0.0",
     "next-routes": "^1.4.2",
-    "react": "^16.4.2",
+    "react": "^16.6.1",
     "react-dom": "^16.4.2",
     "react-helmet": "^5.2.0"
   },