* use updated Komga API (closesgotson/komga#31, closesgotson/komga#32)
* only retrieve books in READY state (was previously handled server side by default)
* add sort options to Series search (closesgotson/komga#33)
* add filters by library
* add custom User-Agent, Komga server can log it to identify clients
* use BuildConfig for version name in User-Agent
* add file size to chapter name