Use simpler IOptionPage::setLayouter overload in a few more places

Change-Id: Id3745dab4363279219062462492b3a3e789776be
Reviewed-by: Christian Stenger <christian.stenger@qt.io>
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>

src/plugins/nim/settings/nimsettings.cpp

@@ -33,15 +33,15 @@ NimSettings::NimSettings()
     setDisplayCategory(Tr::tr("Nim"));
     setCategoryIconPath(":/nim/images/settingscategory_nim.png");
 
-    setLayouter([this](QWidget *widget) {
+    setLayouter([this] {
         using namespace Layouting;
-        Column {
+        return Column {
             Group {
                 title("Nimsuggest"),
                 Column { nimSuggestPath }
             },
             st
-        }.attachTo(widget);
+        };
     });
 
     // code style factory