[fix] fix for starting demo-app

[igorDykhta]

Fir for starting demo-app.

At the moment running yarn start produces the following error:

ERROR in ./node_modules/@loaders.gl/core/node_modules/@probe.gl/log/dist/utils/hi-res-timestamp.js 7:27
Module parse failed: Unexpected token (7:27)
You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders
|     let timestamp;
|     if (isBrowser() && window.performance) {
>         timestamp = window?.performance?.now?.();
|     }
|     else if ('hrtime' in process) {

Possibly related to #2593

[netlify]

✅ Deploy Preview for keplergl2 ready!

Name	Link
🔨 Latest commit	73d90ed
🔍 Latest deploy log	https://app.netlify.com/sites/keplergl2/deploys/66a22f9667850e0008c54dbc
😎 Deploy Preview	https://deploy-preview-2594--keplergl2.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site configuration.

[ibgreen]

Any ideas

• why is this suddenly needed? Is the build of the demo app not tested by CI?
• why isn't the CJS distribution in probel.gl / loaders.gl 4.x being picked up, is it some configuration issue?
• This will be a problem for all visgl libraries once we upgrade to v9 so kepler will be recompiling all of vis.gl at that point, even though CJS distributions are included.

[echo292]

@ibgreen Kepler.gl 3.0 release doesn't run as per current documentation. Do you have a list of steps to run the demo we can publish in the documentation?

Regards,

E