Fix comment header on Star page
Enable image layouts for group page
Sort PageManager methods alphabetically
Add docstrings
Factor out PageManager._best_layout method
Add Page parameter `pagination`
Fix Star comments contained upvotes
Simplify Page constructor
Fix stars not removed after being added to section
Add Chapter class
Add chapter.empty, chapter.page
Layout universe view using Chapter class
Layout Persona, Group pages with Chapter class
Update docstrings
Merge branch 'refactor-pagemanager' into dev