ISTWCMS-7275: Rename "publication" to "reference" in custom block.

Updated class and form names, admin labels, and text strings to replace "publication" with "reference" for consistency and clarity in the custom block functionality. This aligns terminology with its intended purpose.

src/Service/UwBlockAutoElements.php

@@ -685,7 +685,7 @@ class UwBlockAutoElements {
   }
 
   /**
-   * Function to get the publication reference form elements.
+   * Function to get the reference form elements.
    *
    * @param array $form
    *   The form.
@@ -697,10 +697,10 @@ class UwBlockAutoElements {
     array $config
   ): void {
 
-    // The publication reference container for element.
+    // The reference container for element.
     $form['publication_reference'] = [
       '#type' => 'fieldset',
-      '#title' => $this->t('Publication reference list settings'),
+      '#title' => $this->t('Reference list settings'),
       '#states' => [
         'visible' => [
           'select[name="settings[content_type]"]' => [
@@ -710,7 +710,7 @@ class UwBlockAutoElements {
       ],
     ];
 
-    // The number of publications to show form element.
+    // The number of references to show a form element.
     $form['publication_reference']['limit'] = $this->uwBlockService->getLimitPerBlockFormElement(
       'publication_reference',
       $config