Research: Figure out how to use scheduler-polyfill together with TypeScript/Angular

[sondreb]

Want to utilize the new scheduler APIs that is supported on Edge/Chrome and behind flag on FireFox, not yet supported on Safari, but the polyfill can be used. This is a research/spike task to figure out if it's possible to get the polyfill working together with Visual Studio Code and TypeScript not complaining that "scheduler" doesn't exists.

https://www.npmjs.com/package/scheduler-polyfill