[Feature request] 1-click 'mark all as read' like in old Aggregator

[isral]

Is your feature request related to a problem? Please describe. In old Aggregator, I always use the circle button at bottom right. Maybe it's equivalent with 'mark all as read' in aggregator next, but it's hidden in 3 dots menu.

Describe the solution you'd like A new button in action bar. I don't like the old one position because it's covering feeds.

Describe alternatives you've considered If you can't add new button in action bar, swap it with settings button in action bar.