🔥 Fix iOS 15 Scroll Jank (#22)

* npm install

* Upgrade to HTTPS npm registry

* Use ResizeObserver to handle slider resize events instead of `window.resize` in supported browsers

* Add v2.0.3 changelog notes

* npm run build

* Fix iOS 15 blue button colors in demo styles

* Fix incorrect test values for nested slider scroll position

* 2.0.3

3.0.0-alpha.2

3.0.0-alpha.1

3.0.0-alpha.0

2.0.2

2.0.1

2.0.0