IntensityDataPropertyWidget: fix max z

GUI/View/Plot2D/IntensityDataPropertyWidget.cpp

@@ -157,7 +157,7 @@ void IntensityDataPropertyWidget::createPanelElements()
                                     },
                                     &m_updaters));
 
-    yFormLayout->addRow("Max:", GUI::Util::createDoubleSpinboxUpdScroll(
+    zFormLayout->addRow("Max:", GUI::Util::createDoubleSpinboxUpdScroll(
                                     [=] { return currentIntensityDataItem()->zAxisItem()->max(); },
                                     [=](double newValue) {
                                         for (auto item : mainIntensityDataItems())