🛠 Improvements

• Waiting list privacy: Member identities on the waiting list are now hidden when privacy mode is enabled.

• Better text scaling on narrow phones:Tightened text sizing on narrow iPhones and other small phone layouts for improved readability.

🐞 Fixes

• Staff FAB visibility: The add-staff button now shows correctly regardless of collaborator count, and is properly hidden on empty states.

• Waiting list crash on exit": Resolved a crash that could occur when leaving a class with an empty or null waiting list.

• Dialog stability: Fixed crashes caused by emergency contact dialog callbacks firing after dismissal, and bloc interactions after disposal.