Support for React Portal inside the list

[ivan7237d]

There is an error that occurs when you're using a React Portal inside a list item, in my case a Modal from react-bootstrap.

When a keyboard event is dispatched inside the portal, it bubbles up the React component tree to react-movable's onKeyDown handler, which calls checkIfInteractive(target: Element, rootElement: Element). But in this case the DOM tree doesn't match the React tree, and because of that target is not a descendant of rootElement. As a result, in the code inside checkIfInteractive, target ends up being null, and an error is thrown at this line:

react-movable/src/utils.ts

Line 119 in daf3d1f

if (target.getAttribute('data-movable-handle')) {

[cheton]

It will be great to have an option of including a user-defined checkIfInteractive prop for specific purposes.