qet-mcp presets: include QPageSize outside the QtPdf guard

The preset code uses QPageSize and std::floor whether or not QtPdf was
found; it compiled only because other headers bring them in.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

sources/scripting/qetscriptapi.cpp

@@ -52,9 +52,9 @@
 #ifdef QET_HAS_QTPDF
 #include <QPdfDocument>
 #include <QPainter>
+#endif
 #include <QPageSize>
 #include <cmath>
-#endif
 #include "../qetgraphicsitem/dynamicelementtextitem.h"
 #include "../qetgraphicsitem/independenttextitem.h"
 #include "../qetgraphicsitem/qetshapeitem.h"

sources/scripting/qetscriptapi.h

@@ -265,7 +265,7 @@ class QetGraphicsTableItem;
 	  "height", are the frame and title block together in scene units --
 	  what an export draws -- so a caller can check the result.
 
-	  A folio's title block @b template is a seventh, separate case:
+	  A folio's title block @b template is a separate case again:
 	  Diagram::setTitleBlockTemplate() resolves a name only against
 	  QETProject::embeddedTitleBlockTemplatesCollection() -- the same
 	  copy-into-the-project step addElement() already does for elements,