Hi, first of all, you did a great job. I like this app really much.
The only thing I miss is the possibility to jump from the end of one folder right to the beginning of the next.
When I read my Comics (actually Manga) and finish a chapter, its very annoying to have to scroll through the entire folder list for the next. It would be perfect if instead of saying "No more images to display!" Komic would jump to the next folder in the list.
I tried to implement this functionality by myself. Unfortunately its hard to understand the variable names because they are not in my language
Also I never did anything in JS. So I really hope that you can implement this functionality