feat: snackbar for flash err + disconnect on dfurecovery end

lib/pages/device_details_page.dart

@@ -651,6 +651,19 @@ class _DeviceDetailsPageState extends ConsumerState<DeviceDetailsPage> {
       }
     });
 
+    if (result.isErr() &&
+        result.unwrapErr().toString().startsWith(
+              universalShifterBootMetadataWarningMessage,
+            )) {
+      ScaffoldMessenger.of(context).showSnackBar(
+        const SnackBar(
+          content: Text(
+            'WARNING: The device failed writing to its internal storage. This might be a temporary problem. If it continues happening, the internal storage may be broken. If so, please contact abawo support',
+          ),
+        ),
+      );
+    }
+
     if (result.isOk()) {
       _hasLoadedDeviceTelemetry = false;
       unawaited(_loadDeviceTelemetry(force: true));