text: Title: Remove LogoutButton
  Body: Since dcc.LogoutButton is no longer recommended, it should be removed.
  
  The docs page will be redirected to html.Button.
  https://github.com/plotly/ddk-dash-docs/issues/2603
  
  This is a great "first issue" for anyone looking to contribute, and I'm happy to help you get started! If no one takes it on within about a week, I'll handle it as part of the docs PR I'm working on,