MM-47046 Use version of Reaact DOM provided by web app (#169)

Co-authored-by: Mattermod <mattermod@users.noreply.github.com>

webapp/webpack.config.js

@@ -81,6 +81,7 @@ module.exports = {
     },
     externals: {
         react: 'React',
+        'react-dom': 'ReactDOM',
         redux: 'Redux',
         'react-redux': 'ReactRedux',
         'prop-types': 'PropTypes',