Touch swipe option for reading

[kurim]

In addation to this https://github.com/pierobot/mangapie/issues/180, it would be very nice if it is possible to a swipe to change the page?

Like this one: https://css-tricks.com/simple-swipe-with-vanilla-javascript/

[pierobot]

This was actually a feature but I removed it because it wasn't very good at the time.

I do want to bring it back though.

• [ ] Swiping needs to not interfere with zooming in
• [ ] Swiping while zoomed in needs to not change page
• [ ] Swiping on the very edge of the page needs to trigger page change
• [ ] Add option for swiping up & down instead of left & right
• [ ] Swipes that will trigger a page change need to offset the image to let the user know a page change will be triggered

Should be added along with https://github.com/pierobot/mangapie/issues/157