title: flutter remove back button on appbar
body: <p>I am wondering, if anyone knows of a way to remove the back button that shows up on the <code>appBar</code> in a flutter app when you use <code>Navigator.pushNamed</code> to go to another page. The reason I do not want it on this resulting page is that it is coming from the navigation and I want users to use the <code>logout</code> button instead, so that the session starts over.</p>