fix removing toast correctly

[ultrox]

fixes timolins/react-hot-toast#367 from upstream

I've had a look and found out that this fix only works correctly if you remove all toasts, which toast.remove does as it's overloaded (undefined removes all). Actually I would prefer removeById, but that's another discussion.

I found out that what is not happening is that when you click 'remove' the PAUSE_END action is not fired (onMouseLeave is not triggered).

Either fire this action on remove and dismiss, or extract the logic of this PAUSE_END into a separate function and reuse.

You need to do this because the current fix does not count on the pauseDuration being adjusted. This is revealed when you remove by id and then they all disappear at once after the largest pause, which is not the desired behaviour.

Finally, this is a really tricky bug because `dismiss' is also affected, but because dismiss hides the toast, you accidentally trigger END_PAUSE because wrapper is there and onMouseLeave triggers.

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