Reference rootElement when repositioning

[AStoker]

Turns out we don't have proper support for selectors and therefore shadow elements inside the old school toastify.js file (as opposed to how it works in toastify-es.js. Simple fix to allow proper selection of shadow root, we just need to save the rootElement and reference it here.

toastify-js/src/toastify.js

Line 356 in 5725170

var allToasts = document.getElementsByClassName("toastify");