`@babel/polyfill` is deprecated

[probil]

During install dependencies I got such an error:

npm WARN deprecated @babel/polyfill@7.4.4: 🚨 As of Babel 7.4.0, this
npm WARN deprecated package has been deprecated in favor of directly
npm WARN deprecated including core-js/stable (to polyfill ECMAScript
npm WARN deprecated features) and regenerator-runtime/runtime
npm WARN deprecated (needed to use transpiled generator functions):
npm WARN deprecated 
npm WARN deprecated   > import "core-js/stable";
npm WARN deprecated   > import "regenerator-runtime/runtime";