Offline library view

[benonymity]

Display downloaded books in the library view, which is currently blank when offline.

[lkjfdsaofmc]

@advplyr Would this feature include making it possible to view downloaded books on a per library/server basis? Currently the only view for downloaded content would show all downloaded content from any source rather than just the server/library I'm currently looking at. I don't want to make a separate feature request because it sounds like the implementation for this issue would likely resolve my request as well, unless you think otherwise.