Utils: Use a full layout row for an aspect for Columns and Forms

Avoids some boilerplate on the user code side.

This seems to be the only existing case. If there'd ever be a case where
this is not appropriate, an extra Row { ... } would solve it.

Change-Id: I1ae1102e895640c0acc03b4949e3baabecfcdc49
Reviewed-by: Orgad Shaneh <orgads@gmail.com>

src/plugins/cmakeprojectmanager/cmakebuildconfiguration.cpp

@@ -306,9 +306,9 @@ CMakeBuildSettingsWidget::CMakeBuildSettingsWidget(CMakeBuildConfiguration *bc)
 
     Column {
         Form {
-            buildDirAspect, Break(),
-            bc->aspect<InitialCMakeArgumentsAspect>(), Break(),
-            bc->aspect<BuildTypeAspect>(), Break(),
+            buildDirAspect,
+            bc->aspect<InitialCMakeArgumentsAspect>(),
+            bc->aspect<BuildTypeAspect>(),
             qmlDebugAspect
         },
         Space(10),