LPS-48206 Force propagation from site template to site

Hey Brian,

I've added a comment to explain what this code is for. This issue affects only to actions (EditGroupAction, EditUserGroupAction, EditOrganizationAction, EditUserAction) so we cannot provide an specific test for it.

However, the LayoutSetPrototypePropagationTest already uses the same mechanism to ensure the propagation of changes programmatically, so it's already covered by our tests. I've just removed the now redundant invocation to propagate changes after updating the link-enabled.

Thanks

@juliocamarero