Don't escape default value

It is only used in ".value =" is this is safe

Closes #3457555

src/Plugin/facets/widget/AutoCompleteWidget.php

@@ -112,6 +112,7 @@ class AutoCompleteWidget extends WidgetPluginBase {
     $default_value = '';
     if (isset($active[0])) {
       $default_value = $autocomplete_values[$active[0]] ?? '';
+      $default_value = Html::decodeEntities($default_value);
     }
     // Add libraries and everything to js.
     $build['#attached']['library'][] = 'facets_autocomplete/drupal.facets_autocomplete.autocomplete-widget';