[Feature Request] Option to automatically send a book to ereader when a book is added to the library..

[RazeLighter777]

Is your feature request related to a problem? Please describe.
Users must manually send their books to their kindle via the button in the web interface.
Describe the solution you'd like
I would like to an automatically trigger the send-to-ereader function when a book is added to the calibre library.

Describe alternatives you've considered
Scripting it myself through the api. But there is no way to hook into library imports from my own research to do this without inotify or some other hack.

Additional context
Willing to make a PR and do myself if others want it.

[cauliflowerdoughnuts]

this would be very useful

[dslabosz]

I think this is definitely missing from the readarr/calibre stack.
It would be awesome to get a download from readarr and have to auto emailed to kindle