Upgrade mobx and mobx-react

Author: tanx

package-lock.json

@@ -35,8 +35,8 @@
     "electron-updater": "^3.2.3",
     "grpc": "^1.15.1",
     "locale-currency": "0.0.2",
-    "mobx": "^4.5.0",
-    "mobx-react": "^5.2.8",
+    "mobx": "^4.9.4",
+    "mobx-react": "^5.4.3",
     "qr-image": "^3.2.0",
     "react": "^16.8.6",
     "react-art": "^16.8.6",