Add the capability to configure react-scripts webpack options

[GuillaumeMilan]

I had exactly the same problem as described in the following issue #12009 starting my react-app inside a docker container on Mac OS via OrbStack.
I think this is correlated with the VM issue that lead to the CHOKIDAR_USEPOLLING introduction.

But adding this option did not fix my problem and I had to modify node_modules/react-scripts/scripts/start.js config constant declaration as follow:

 const config = {
      ...configFactory('development'),
      watchOptions: {                                                                                                                                                                                       
        poll: 1000,
      },
    };

I don't who should implement the capability to provide this as an option (react-scripts or configFactory).
But it would be super nice if we could provide webpack configuration arguments to the react-scripts scripts.