[Doppins] Upgrade dependency @babel/plugin-proposal-class-properties to 7.3.0 (#777)
[Doppins] Upgrade dependency @babel/plugin-proposal-class-properties to 7.3.0 (#777)

* Upgrade dependency @babel/plugin-proposal-class-properties to 7.3.0

bayesimpact/docker-react,bayesimpact/docker-react