feat: Add logger service and improve expense dialog with enhanced receipt management and calculation logic.

lib/components/loading/laoding_content.dart

@@ -57,7 +57,7 @@ class _LoadingContentState extends State<LoadingContent>
           widget.onComplete!();
         }
       } catch (e) {
-        print('Erreur lors de la tâche en arrière-plan: $e');
+        debugPrint('Erreur lors de la tâche en arrière-plan: $e');
       }
     }
   }