fix: Fix minor things

packages/moxplatform_android/lib/src/crypto_android.dart

@@ -1,4 +1,3 @@
-import 'dart:typed_data';
 import 'package:flutter/services.dart';
 import 'package:moxplatform_platform_interface/moxplatform_platform_interface.dart';
 

packages/moxplatform_android/lib/src/service_android.dart

@@ -34,7 +34,7 @@ class AndroidBackgroundService extends BackgroundService {
       event,
     );
     // NOTE: *S*erver to *F*oreground
-    _log.fine('S2F: ${data.toJson().toString()}');
+    _log.fine('S2F: ${data.toJson()}');
     channel.invokeMethod<void>('sendData', jsonEncode(data.toJson()));
   }