4.10.0

Program improvements:

• Added a new cover for Worm.
• Changed the author metadata of the produced EPUBs from "wildbow" to "Wildbow".
• Added cover credits in this repository.
• Allowed running the scraper with no commands, i.e. now you can type just worm-scraper instead of worm-scraper download convert scaffold zip.
• Slightly improved the output of various steps. The download step in particular is now less verbose.
• Updated under-the-hood dependencies.