[enhancement] Exporting single title/volume as archive or backup between devices

[Eridani-zz]

In current form, the only way to transfer between devices would be moving entire LN reader directory or backup (both of which includes everything downloaded). Including option to export single title/volume with its associated images and bookmarks would make this more convent.

[oliviervinot]

Hi, it would be great, i'm in the same case. Thank you very much