fix(main.py): add print statements to track navigation changes for debugging

main.py

@@ -727,6 +727,7 @@ class MediaGrader:
                 self.media_files.append(original_file)
             
             # Navigate to the restored file
+            print("Navigating to: ", original_index)
             self.current_index = original_index
             
             print(f"Undone: Moved {original_file.name} back from grade folder")
@@ -809,6 +810,7 @@ class MediaGrader:
                     break
                 elif key == ord("p"):
                     self.current_index = max(0, self.current_index - 1)
+                    print("Navigating to: ", self.current_index)
                     break
                 elif key == ord("u"):
                     if self.undo_last_action():
@@ -844,6 +846,7 @@ class MediaGrader:
                         self.load_current_frame()
 
             if key not in [ord("p")]:
+                print("Navigating to: ", self.current_index)
                 self.current_index += 1
 
         if self.current_cap: