Use QStyledItemDelegate as base for ScanFoldersDelegate

src/gui/scanfoldersdelegate.cpp

@@ -37,7 +37,7 @@
 #include "base/scanfoldersmodel.h"
 
 ScanFoldersDelegate::ScanFoldersDelegate(QObject *parent, QTreeView *foldersView)
-    : QItemDelegate(parent)
+    : QStyledItemDelegate(parent)
     , m_folderView(foldersView)
 {
 }

src/gui/scanfoldersdelegate.h

@@ -29,7 +29,7 @@
 #ifndef SCANFOLDERSDELEGATE_H
 #define SCANFOLDERSDELEGATE_H
 
-#include <QItemDelegate>
+#include <QStyledItemDelegate>
 
 class QAbstractItemModel;
 class QModelIndex;
@@ -39,7 +39,7 @@ class QTreeView;
 
 class PropertiesWidget;
 
-class ScanFoldersDelegate final : public QItemDelegate
+class ScanFoldersDelegate final : public QStyledItemDelegate
 {
     Q_OBJECT