[Feature Request] Hide tab bar when there is only one tab open

As a user I'd like Angelfish to allow to hide tab bar when there is only one tab open, at least on desktop.

Falkon has this option, but with the clear and minimal look of angelfish it would be the perfect browser for screenshots and project demos.

Of course this is just a wishful feature request, I actually have no expectations just a wish for this.

Thanks for all the hard work.