show error strings for printer status

lib/pages/printer_details/printer_details_page.dart

@@ -337,13 +337,17 @@ class _PrinterDetailsPageState extends State<PrinterDetailsPage> {
                               ListTile(
                                   title: Text('Scanner'),
                                   trailing: Text(
-                                    _printer.status.scan == 0 ? 'Aktiv' : 'Fehler',
+                                    _printer.status.scan == 0
+                                        ? 'Aktiv'
+                                        : _printer.status.scanStatus.join(', '),
                                     style: Theme.of(context).textTheme.subtitle1,
                                   )),
                               ListTile(
                                   title: Text('Kopierer'),
                                   trailing: Text(
-                                    _printer.status.copy == 0 ? 'Aktiv' : 'Fehler',
+                                    _printer.status.copy == 0
+                                        ? 'Aktiv'
+                                        : _printer.status.copyStatus.join(', '),
                                     style: Theme.of(context).textTheme.subtitle1,
                                   )),
                               ListTile(