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/git/gitsubmiteditorwidget.cpp

@@ -81,7 +81,8 @@ public:
                 }
             },
             editGroup,
-        }.attachTo(this, WithoutMargins);
+            noMargin,
+        }.attachTo(this);
     }
 
     QLabel *repositoryLabel;