Pull to refresh feature

[sermah]

As a trackpad user, I think it would be nice to add a refresh gesture. Just like on mobile devices, you pull the page down (scroll up while being already on top of the page) to refresh it.

Why? There are already pull to the side gestures to go back/forward, which are also present on mobile devices.

• It must be under a toggle (off by default) as it's rarely expected to work on desktop devices.
• It must match scroll handling like in mobile browsers. Sometimes scroll is consumed inside the page and it prevents this gesture.
• There probably should be some configurable thresholds (like pull amount and pull speed).
• If possible, there should be an option to only be enabled while using trackpad.