Disable copy, move constructors when inheriting from QObject

src/gui/properties/pieceavailabilitybar.h

@@ -32,10 +32,11 @@
 
 class PieceAvailabilityBar final : public PiecesBar
 {
-    using base = PiecesBar;
     Q_OBJECT
     Q_DISABLE_COPY_MOVE(PieceAvailabilityBar)
 
+    using base = PiecesBar;
+
 public:
     PieceAvailabilityBar(QWidget *parent);