destroyAndRemove() {
        this.destroy();
        const {root, app} = this._root;

        // Remove element
        if (root.parentElement) {
            root.parentElement.removeChild(root);
        }

        // Remove .pcr-app
        app.parentElement.removeChild(app);

        // There are references to various DOM elements stored in the pickr instance
        // This cleans all of them to avoid detached DOMs
        Object.keys(this)
            .forEach(key => this[key] = null);
    }
Destroy's all functionalitys and removes
the pickr element.