Include Currently Reading Books

[driscoll42]

Is your feature request related to a problem? Please describe.
Currently Library Scan only scans to read books. There are times when I would want to also check my currently reading books (perhaps the library added the audiobook version and/or ebook)

Describe the solution you'd like
Ideally Library Scan would check the currently reading shelf as well as the to read shelf, perhaps as a check box as whether or not to do so. Some users might want to check the "read" shelf as well .

Describe alternatives you've considered
Check manually, usually not reading too many books simultaneously