Scroll Lock
Lock scroll position.
A scroll lock class is added.
Default lock clas is is-scroll-disabled
```
npm i @burst/scroll-lock --save-dev
`js
import { scrollLock } from '@burst/scrollLock';
lockScroll.lockScroll();
// options
// scrollClass = 'is-scroll-disabled',
// setScroll = true,
// setFixed = true,
lockScroll.releaseScroll(true); // use true to remove all fixed styling on the document
``