Add a "Send to mobile" option to allow users to browse books from a desktop web browser and initiate downloads to their mobile device, similar to how the Google Play store allows app installs.
### Type of Enhancement Web Interface/Frontend ### Describe the Feature/Enhancement In a similar vein to how the Google Play store can allow one to browse mobile apps from the comfort and convenience of a full desktop web browser and install selected apps to the user's mobile device: <img width="944" height="614" alt="Image" src="https://github.com/user-attachments/assets/7963d46f-3b6d-456d-975f-4c62bc717d42" /> this is an analogous feature request which would allow a user to browse books in the same comfort and convenience of the full desktop web UI with a `Send to mobile` option to trigger the mobile client to download the book to local storage. A couple of points: - I assume that this is an Android only sort of thing since iOS is more restricted - Ideally, there would be some way in either the mobile client or in the ABS server to set the default download directory (since such specificity at time of `Send to mobile` seems unlikely) - This would be integrated in some way to