[applets/comic] Remove ability to ceate comic book archives

This feature is supposed to download a set of comics from a given provider and create a bundle file

While the idea is sound enough the implementation and UX is rather broken

Attempting to actually create a bundle results in a crash or just doesn't work

Even if those bugs were fixed there are still some UX problems:

When creating a bundle from all items the user is not aware that they will potentially download thousands of images from the internet

When limiting to a subset the user has to define a range based on identifiers. These identifiers are different between different sources.

Some use numerical indices, some alphanumerical, some use dates.

The UI doesn't indicate that in any way, leaving the user guessing how it is supposed to work.

While all of those issues are fixable in theory I am not sure it is worth the effort for a somewhat niche feature