Download lendable books from Internet Archive and HathiTrust Digital Library.

Usage
For Internet Archive (https://archive.org):
After borrowing a book, two new buttons, "Quality" and "Download", appear under the book viewer.

For HathiTrust (https://hathitrust.org):
For books with full view permission, a new section, "Ayesha", appears above the "Download" section on the left-hand side of the page. The section contains three buttons, "Quality", "Tasks" and "Download".

On any problems or suggestions please report to Support site (https://github.com/elementdavv/internet_archive_downloader/issues)