feat(YALB-1428): change link title label

This uses the hook_preprocess_form_element_label to intercept the call
to action field_link and change the title markup to 'Call-to-action
text' from 'Link text'.

Co-authored-by: @codechefmarc

web/profiles/custom/yalesites_profile/modules/custom/ys_core/ys_core.module

@@ -313,3 +313,15 @@ function ys_core_preprocess_image_widget(&$variables) {
 function ys_core_taxonomy_term_update() {
   Cache::invalidateTags(['rendered']);
 }
+
+/**
+ * Implements hook_preprocess_form_element_label().
+ *
+ * Change the link widget text to 'Call-to-action text'
+ */
+function ys_core_preprocess_form_element_label(&$variables) {
+  if ($variables['theme_hook_original'] == "form_element_label__layout_builder_add_block__settings_block_form_field_link_0_title" ||
+    $variables['theme_hook_original'] == "form_element_label__layout_builder_update_block__settings_block_form_field_link_0_title") {
+    $variables['title']['#markup'] = 'Call-to-action text';
+  }
+}