title: How to increase the Vaadin notification/warning time?
body: <p>How to increase the <strong>Vaadin notification/warning time?</strong> I am using Vaadin Valo theme. Nothing from the Book of Vaadin <a href="https://vaadin.com/book/vaadin7/-/page/application.notifications.html" rel="noreferrer">Notifications</a> page helps.</p>