[Future V2.7]Being able to transfer all covers from all my libraries at once

[weto91]

Is your feature request related to a problem? Please describe. If I have several libraries and on my Kindle I have books from several of them, I have to select each library, search for the books, generate the covers and then transfer them.

Describe the solution you'd like The idea is that the "All libraries" option appears in the list of libraries and in a single process, all the books are listed, all the covers are generated and transferred to the Kindle

Additional context This feature is on development phase. It will be released on Version 2.7