fix: don't show `Continue reading` when there are no unread chapters

feat: add new font - `Lexend`

fix: remove unused imports

feat: add a setting to customize font height

fix: implement chapter open in browser action

refactor: merge methods using admin-ajax.php

fix: use proper inactive text color for both themes

feat: add author page

feat: add trending page

fix: don't show LibraryCard context menu on discover

fix: text overflow in library cards

feat(reader): handle centering

docs: add some information to readme

feat(reader): parse announcements

feat(reader): parse author notes