Given that Node.js has finally implemented native support for `atob`/`btoa`, it can't hurt to update the comments in `src/shared/compatibility.js` so that we don't forget to remove the polyfills once Node.js version `16` becomes the lowest supported LTS release; see - https://developer.mozilla.org/en-US/docs/Web/API/atob#browser_compatibility - https://developer.mozilla.org/en-US/docs/Web/API/btoa#browser_compatibility