Enhance Supervisor Dashboard and Trainee Feedback Features

- Redesigned the supervisor overview page to include a header card with supervisor details and trainee statistics.
- Implemented a tabbed interface for viewing trainees and their recent attempts.
- Improved the trainee detail page with a profile card and a table for displaying attempt history.
- Added a new view for supervisors to provide feedback on case collections, including outstanding feedback items and previous conversations.
- Updated URL routing to support new feedback functionality.
- Enhanced backend logic to ensure proper sharing permissions for exam attempts and case collections.
- Added comprehensive tests for supervisor access to trainee data and feedback functionalities.

generic/urls.py

@@ -239,6 +239,11 @@ urlpatterns = [
         views.supervisor_trainee,
         name="supervisor_trainee",
     ),
+    path(
+        "supervisor/<int:pk>/trainee/<int:trainee_id>/collection/<int:collection_id>/",
+        views.supervisor_collection_feedback,
+        name="supervisor_collection_feedback",
+    ),
     path(
         "supervisor/<int:pk>",
         views.SupervisorDetail.as_view(),