TaskEdit stops working if hideAnimationEnd event is not fired

[matsbryntse]

Needs a timeout as a fallback

onBeforeHide({ source, animate }) {
        // It should not matter that we might override previous promise. Any chained promises still are going to be
        // executed. We only need to make sure that current promise and doCancel promises end at the same time.
        if (source.hideAnimation && animate !== false) {
            this._hiding = new Promise(resolve => {
                source.ion({ hideAnimationEnd : resolve });
            }).finally(() => this._hiding = undefined);
        }
    }