Layouting: Handle attach types via setter

Change-Id: I862f5cd109db3582b4f029787ec0cded2da39ce6
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Alessandro Portale <alessandro.portale@qt.io>

src/plugins/vcsbase/submiteditorwidget.cpp

@@ -208,8 +208,9 @@ SubmitEditorWidget::SubmitEditorWidget() :
 
     using namespace Layouting;
     Column {
-        scrollArea
-    }.attachTo(this, WithoutMargins);
+        scrollArea,
+        noMargin
+    }.attachTo(this);
 
     connect(d->description, &QWidget::customContextMenuRequested,
             this, &SubmitEditorWidget::editorCustomContextMenuRequested);