Add abstract method updateStatus to renderer

src/SwingRenderer.java

@@ -66,6 +66,7 @@ public class SwingRenderer extends GomokuRenderer {
         canvas.draw(game);
     }
 
+    @Override
     public void updateStatus(String status) {
         // Update the status label
         JLabel statusLabel = (JLabel) mainFrame.getContentPane().getComponent(1);