new -> make_unique

GUI/Model/Mask/MaskeditorListmodel.cpp

@@ -22,7 +22,7 @@
 
 MaskeditorListmodel::MaskeditorListmodel(MaskList* item)
     : m_mask_container_item(item)
-    , m_selection_model(new QItemSelectionModel(this))
+    , m_selection_model(std::make_unique<QItemSelectionModel>(this))
 {
 }