changed the file name to site_settings and updated a code

site_setting.page.inc

@@ -2,7 +2,7 @@
 
 /**
  * @file
- * Contains site_setting_entity.page.inc.
+ * Contains site_setting.page.inc.
  *
  * Page callback for Site Setting entities.
  */
@@ -14,16 +14,16 @@ use Drupal\Core\Url;
 /**
  * Prepares variables for Site Setting templates.
  *
- * Default template: site_setting_entity.html.twig.
+ * Default template: site_setting.html.twig.
  *
  * @param array $variables
  *   An associative array containing:
  *   - elements: An associative array containing the user information and any
  *   - attributes: HTML attributes for the containing element.
  */
-function template_preprocess_site_setting_entity(array &$variables) {
+function template_preprocess_site_setting(array &$variables) {
   // Fetch SiteSettingEntity Entity Object.
-  $site_setting_entity = $variables['elements']['#site_setting_entity'];
+  $site_setting = $variables['elements']['#site_setting'];
 
   // Helpful $content variable for templates.
   foreach (Element::children($variables['elements']) as $key) {
@@ -34,21 +34,21 @@ function template_preprocess_site_setting_entity(array &$variables) {
 /**
  * Prepares variables for a custom entity type creation list templates.
  *
- * Default template: site_setting_entity-content-add-list.html.twig.
+ * Default template: site_setting-content-add-list.html.twig.
  *
  * @param array $variables
  *   An associative array containing:
- *   - content: An array of site_setting_entity-types.
+ *   - content: An array of site_setting-types.
  *
  * @see block_content_add_page()
  */
-function template_preprocess_site_setting_entity_content_add_list(array &$variables) {
+function template_preprocess_site_setting_content_add_list(array &$variables) {
   $variables['types'] = [];
   $query = \Drupal::request()->query->all();
   foreach ($variables['content'] as $type) {
     $url = new Url(
-      'entity.site_setting_entity.add_form',
-      ['site_setting_entity_type' => $type->id()],
+      'entity.site_setting.add_form',
+      ['site_setting_type' => $type->id()],
       ['query' => $query]
     );
     $link = Link::fromTextAndUrl($type->label(), $url);