ISTWCMS-5686 Refactor to ensure that the contained width is selected by...

ISTWCMS-5686 Refactor to ensure that the contained width is selected by default due to new feature from 2.0.0

uw_cfg_common.module

@@ -178,11 +178,8 @@ function uw_cfg_common_entity_presave(EntityInterface $entity) {
  * Remove the None option from layout builder styles.
  */
 function uw_cfg_common_form_layout_builder_configure_section_alter(array &$form, FormStateInterface $form_state, string $form_id): void {
-  // Remove the None option from layout builder styles.
-  unset($form['layout_builder_style']['#empty_option']);
-
   // Ensuring that the contained width is selected by default.
-  $form['layout_builder_style']['#default_value'] = $form['layout_builder_style']['#default_value'] ?: 'uw_lbs_contained_width';
+  $form['layout_builder_style_default']['#default_value']['uw_lbs_contained_width'] = 'uw_lbs_contained_width';
 }
 
 /**