Update coding to reflect the current EPUB formating, so that Cover previews can be shown for ALL EPUB files.
Currently a LOT of my EPUB files don't show cover pages when viewed on OneDrive for iOS or PC. These files also cannot be opened on my iPad withing the OneDrive app. Whereas other EPUB files work no problem. My main issue is to be able to covers, as often the full title of the book can't be fully displayed, and browsing by covers is often quicker.