Bug with restrictRect and resizable

[tups]

Fix issue : #946

[taye]

Thanks for the PR. Can you add a test case for this fix?

[tups]

If the child element is as large as the parent, we can no longer resize it, and some other cases depending on its position

Here is an example configuration that does not work without PR. Just try to resize the image
CodePen : https://codepen.io/tups/pen/vYeeOav

[andreasvirkus]

@tups by "test case" he meant a spec file, something like https://github.com/taye/interact.js/blob/main/packages/%40interactjs/offset/offset.spec.ts