Work around MultiColumnWizard select styling and behavior issues.

Select doesn't get a fixed width automatically because, unlike the ModuleWizard,
MultiColumnWizard doesn't add the tl_select_column CSS class.

After row duplication, select options can only be selected when chosen is used:
menatwork/MultiColumnWizard#188

dca/tl_layout.php

@@ -45,12 +45,24 @@
 			'col'      => [
 				'label'            => &$GLOBALS['TL_LANG']['tl_layout']['fallbackArticlesCol'],
 				'inputType'        => 'select',
-				'options_callback' => [Layout::class, 'getSections']
+				'options_callback' => [Layout::class, 'getSections'],
+				'eval'             => [
+					// MultiColumnWizard doesn't set tl_select_column class
+					'style'  => 'width: 140px;',
+					// see https://github.com/menatwork/MultiColumnWizard/issues/188
+					'chosen' => true
+				]
 			],
 			'fallback' => [
 				'label'            => &$GLOBALS['TL_LANG']['tl_layout']['fallbackArticlesFallback'],
 				'inputType'        => 'select',
-				'options_callback' => [Layout::class, 'getFallbackMethods']
+				'options_callback' => [Layout::class, 'getFallbackMethods'],
+				'eval'             => [
+					// MultiColumnWizard doesn't set tl_select_column class
+					'style'  => 'width: 140px;',
+					// see https://github.com/menatwork/MultiColumnWizard/issues/188
+					'chosen' => true
+				]
 			]
 		]
 	],