API
- Fix: Allow party invites up to 30 total members, not just 29 (@SabreCat)
- Fix: Allow GET requests, and POST /leave requests, against Challenges that you belong to but whose underlying Party or Guild is inaccessible (@SabreCat)
Client
- Fix: Don't try to navigate to same route when user clicks avatar on the profile page it belongs to (@SabreCat)