* Move chapter download logic to base class
* Do not reuse "FolderProvider" in "ArchiveProviders" download function
Due to reusing the "FolderProvider" to download a chapter as a cbz file, a normal chapter download folder was created.
In case the download was aborted before the cbz file got created and the folder deleted, the next time the chapter got downloaded, the wrong "FileProvider" was selected, causing the chapter not to get downloaded as a cbz file.
schroda
1c9a139006