Added two minor refactoring todos.

UIs/BeetRoundWidgets/widgets/comboboxdelegate.h

@@ -2,9 +2,10 @@
 #define COMBOBOXDELEGATE_H
 
 #include <QStyledItemDelegate>
-
 class QStringListModel;
+
 class ComboboxDelegate : public QStyledItemDelegate {
+  // TODO move source code files into subfolder "widgets/delegate"
   Q_OBJECT
  public:
   explicit ComboboxDelegate(const QStringList items, QObject* parent = nullptr);

UIs/BeetRoundWidgets/widgets/spinboxdelegate.h

@@ -4,6 +4,7 @@
 #include <QStyledItemDelegate>
 
 class SpinboxDelegate : public QStyledItemDelegate {
+  // TODO move source code files into subfolder "widgets/delegate"
   Q_OBJECT
  public:
   explicit SpinboxDelegate(QObject* parent = nullptr);