Merge branch 'master' into qt6_cmake_joshua

sources/titleblock/helpercell.h

@@ -20,7 +20,7 @@
 #include "../qet.h"
 
 #include <QtWidgets>
-
+#include <QGraphicsLayoutItem>
 /**
 	This class implements a helper widget for cells that indicate the length of
 	columns and rows.

sources/titleblock/templateview.h

@@ -20,6 +20,8 @@
 #include "../titleblocktemplate.h"
 
 #include <QGraphicsView>
+#include <QGraphicsGridLayout>
+#include <QGraphicsLayoutItem>
 class HelperCell;
 class SplittedHelperCell;
 class TitleBlockTemplateCommand;