[Feature Request] Better touch swipe for VWindow

[antfu]

Problem to solve

On mobile device, VWindow allows user swiping to change pages. But currently the VWindow will change pages on touchend event instead of follow the finger like other native apps do. (Which is kinda making users feel "lag"). It would be great if VWindow solves that.

Proposed solution

I have found some tutorials shows up how to implement this feature:
https://css-tricks.com/the-javascript-behind-touch-friendly-sliders/
https://css-tricks.com/can-get-pretty-far-making-slider-just-html-css/

Since the other components like v-tabs, v-carousel relies on v-window. I think this can benefit them too.