[mob] Minor changes

mobile/lib/services/machine_learning/face_ml/face_detection/detection.dart

@@ -12,7 +12,7 @@ extension FaceDirectionExtension on FaceDirection {
       case FaceDirection.right:
         return 'Right';
       case FaceDirection.straight:
-        return 'Straigt';
+        return 'Straight';
       default:
         throw Exception('Unknown FaceDirection');
     }

mobile/lib/services/machine_learning/face_ml/face_ml_service.dart

@@ -204,8 +204,10 @@ class FaceMlService {
       try {
         switch (function) {
           case FaceMlOperation.analyzeImage:
+            final time = DateTime.now();
             final FaceMlResult result =
                 await FaceMlService.analyzeImageSync(args);
+            dev.log("`analyzeImageSync` function executed in ${DateTime.now().difference(time).inMilliseconds} ms");
             sendPort.send(result.toJsonString());
             break;
         }