Request: Adjust swipe action angle

[fiso64]

Thanks for working on this project, it's great.

One minor thing I've noticed is that the minimum angle at which the swipe action gets triggered is exactly or close to 45°, resulting in accidental side swipes when I just meant to scroll up or down. Would be nice if a slight bias towards scrolling was added. I've checked a few other apps I have installed and it seems that they're all a bit less sensitive to horizontal swiping than vertical scrolling.