Move profile and settings into the new unified dashboard, showing user info in one place

trades/models.py

@@ -334,6 +334,7 @@ class TradeAcceptance(models.Model):
         if new_state not in allowed:
             raise ValueError(f"Transition from {self.state} to {new_state} is not allowed.")
 
+        self._actioning_user = user
         self.state = new_state
         self.save(update_fields=["state"])