Improve NPM Scripts

[yevdyko]

Hey @jamesrweb

When testing the latest changes on master, I found that not all npm scripts are up to date. So this MR updates them and adds some missing steps. Hope you will find it useful.

What was changed?

• Commit changes to the package.json and package-lock.json files properly after install.
• Fix the npm start script. After updating webpack-cli to v4 we should use webpack serve to run webpack-dev-server.
• Add the npm clean script as a first step when compiling lib.
• Add react-dom as a peer dependency.
• Remove the unused npm build script. There is no prod webpack config and it looks like the script is not used.
• Rename the npm compile script to npm build script.