Feat: Streamline and extend logging

src/Controller/Admin/System/Training/DeleteController.php

@@ -27,7 +27,8 @@ class DeleteController extends AbstractController
 
         $this->addFlash('success', 'Die Fortbildung wurde gelöscht');
         $this->logger->info('Delete training', [
-            'training' => $training->getName(),
+            'training_id' => $training->getId(),
+            'training_name' => $training->getName(),
         ]);
 
         return $this->redirectToRoute('app_admin_system_training_index');