Added base class and removed button from actions

Closes #3468292

modules/commerce_product_availability_webform_request/commerce_product_availability_webform_request.module

@@ -165,7 +165,7 @@ function commerce_product_availability_webform_request_add_request_button(&$form
   $target = $thirdPartySettings['cpawr_link_display_mode'] === 'blank' ? '_blank' : '_self';
 
   // Classes logic:
-  $classes = ['button'];
+  $classes = ['button', 'commerce-product-availability-webform-request'];
   if (!empty($thirdPartySettings['cpawr_additional_link_classes'])) {
     $classes = array_merge($classes, $thirdPartySettings['cpawr_additional_link_classes']);
   }
@@ -179,7 +179,11 @@ function commerce_product_availability_webform_request_add_request_button(&$form
     'class' => $classes,
   ]);
 
-  $form['actions']['webform_request'] = [
+  // We don't put this into ['actions'] intentionally,
+  // as it would make things harder to theme in combination
+  // with add_to_cart button.
+  // @see https://www.drupal.org/project/commerce_product_availability/issues/3468292
+  $form['webform_request'] = [
     '#theme' => 'commerce_product_availability_webform_request_link',
     '#attributes' => $attributes->toArray(),
     '#label' => $buttonLabel,