Adding CBZ export option with embedded ComicInfo.xml

[averageFOSSenjoyer]

Background

• ComicInfo.xml is a metadata evaluation file used by various comics media server like komga and kavita.
  • https://github.com/anansi-project/comicinfo
• cbz is effectively zip but far more recognizable by media servers along with the ability to embed metadata like the ComicInfo.xml mentioned above
  • Some media server may not recognize the metadata if the format is not in cbz

Changes

Created ComicInfoXML class as metadata container and serializer Added option to export comics as CBZ in UI and backend

Preview

[averageFOSSenjoyer]

71917cf not sure how python doesn't give out warning for this

[Zeal-L]

@averageFOSSenjoyer 尊敬的舰长大人，Thank you very much for your contribution~ We've officially adopted the new features you've written!