Bump webpack-dev-server to 4.0.0 and add babel preset

Author: Konrad Stepniak

packages/babel-preset-react-app/create.js

@@ -164,6 +164,12 @@ module.exports = function (api, opts, env) {
  loose: true,
  },
  ],
+ [
+ require('@babel/plugin-proposal-private-property-in-object').default,
+ {
+ loose: true,
+ },
+ ],
  // Adds Numeric Separators
  require('@babel/plugin-proposal-numeric-separator').default,
  // Polyfills the runtime needed for async/await, generators, and friends

packages/react-scripts/package.json

@@ -71,7 +71,7 @@
  "source-map-loader": "^1.1.2",
  "style-loader": "3.0.0",
  "webpack": "5.41.1",
- "webpack-dev-server": "4.0.0-rc.1",
+ "webpack-dev-server": "4.0.0",
  "webpack-manifest-plugin": "3.1.1",
  "workbox-webpack-plugin": "6.1.5"
  },