fix lint

Author: stilnat

examples/lib/stories/input/scale_example.dart

@@ -91,7 +91,7 @@ class InteractiveRectangle extends RectangleComponent
          paint: Paint()..color = color,
        );
 
-  bool isScaling = false;
+  bool isDoingScaling = false;
   double initialAngle = 0;
   Vector2 initialScale = Vector2.all(1);
   double lastScale = 1.0;
@@ -137,7 +137,7 @@ class InteractiveRectangle extends RectangleComponent
   @override
   void onScaleStart(ScaleStartEvent event) {
     super.onScaleStart(event);
-    isScaling = true;
+    isDoingScaling = true;
     initialAngle = angle;
     initialScale = scale;
     lastScale = 1.0;
@@ -167,7 +167,7 @@ class InteractiveRectangle extends RectangleComponent
   @override
   void onScaleEnd(ScaleEndEvent event) {
     super.onScaleEnd(event);
-    isScaling = false;
+    isDoingScaling = false;
     debugPrint('Scale ended with velocity ${event.velocity}');
   }
 }