fix lints

packages/flutter_tor/lib/flutter_tor.dart

@@ -1,9 +1,8 @@
+export 'src/flutter_tor.dart';
 export 'src/tor_api.g.dart'
     show
-        TransportType,
+        IPtProxyController,
         TorConfiguration,
-        TorStatus,
         TorLogMessage,
-        IPtProxyController;
-
-export 'src/flutter_tor.dart';
+        TorStatus,
+        TransportType;

packages/flutter_tor/lib/src/flutter_tor.dart

@@ -57,9 +57,9 @@ class FlutterTor {
     // Unregister the Flutter API handler
     TorLogApi.setUp(null);
 
-    _logController.close();
-    _statusController.close();
-    _bootstrapController.close();
+    unawaited(_logController.close());
+    unawaited(_statusController.close());
+    unawaited(_bootstrapController.close());
   }
 }