A year ago a feature was added to the image overlay to be able to swipe left and right between images in **beta**.
* https://en.m.wikipedia.org/wiki/Cat?mobileaction=stable#/media/File%3ACat_poster_1.jpg
vs
* https://en.m.wikipedia.org/wiki/Cat?mobileaction=beta#/media/File%3ACat_poster_1.jpg
That's the only difference between the two. We should promote this to stable so that everybody can swipe, or remove the feature if it doesn't work properly (more than a year in beta).
=ac
[] Merge `mobile.mediaviewer.beta` with `mobile.mediaviewer`
[] Remove logic in [[ https://github.com/wikimedia/mediawiki-extensions-MobileFrontend/blob/master/resources/skins.minerva.scripts/init.js#L215-L240 | `skins.minerva.scripts/init.js` ]]
[] User can swipe left and right when viewing images in mobile web stable
[] Swiping should be available on all modern browsers which are touch enabled as listed here: https://www.mediawiki.org/wiki/Compatibility#Browsers