Modal over Modal, can not be removed appropriately

[monster-echo]

When I have a Modal over another Modal.

The top modal backdrop is not cover the bottom Modal by the z-40.

if I add the top Modal backdrop with z-50 and Modal with z-[60], it's worked.

but when removed the top Modal. it fails, because the the top Modal backdrop is alive and bottom Modal backdrop is destroyed.

flowbite/src/components/modal/index.ts

Lines 88 to 95 in 30b276b

	document.querySelector('body').append(backdropEl);
	this._backdropEl = backdropEl;
	}
	}
	_destroyBackdropEl() {
	if (!this._isHidden) {
	document.querySelector('[modal-backdrop]').remove();

[zoltanszogyenyi]

Hey @monster-echo,

Should be fixed via your PR. Thanks!