field suggestion alter

        /** @var  \Drupal\bootstrap\Utility\Element $element */
        $element = Element::create($variables['element']);
        $sanitizedViewMode = strtr($element->getProperty('view_mode'), '.', '_');
        $entityType = $element->getProperty('entity_type');
        $fieldName = $element->getProperty('field_name');
        $bundle = $element->getProperty('bundle');
        $suggestions[] = 'field__' . $entityType . '__' . $fieldName . '__' . $bundle . '__' . $sanitizedViewMode;