ISTWCMS-7275: Fix typo in batch operation completion message.

Corrected an extra period in the success message displayed after batch updates. This ensures the message is properly formatted and improves clarity for end-users.

uw_custom_blocks.post_update.php

@@ -215,7 +215,7 @@ function _references_block_titles_updates_batch_temp_storage(&$context) {
  *   about nodes and revisions processed during the batch operation.
  */
 function _references_block_titles_updates_batch_end(&$context) {
-  $context['message'] = t('Successfully updated @nodes_updated/@nodes_processed. nodes', [
+  $context['message'] = t('Successfully updated @nodes_updated/@nodes_processed nodes', [
     '@nodes_updated' => $context['results']['nodes_updated'],
     '@nodes_processed' => $context['results']['nodes_processed'],
   ]);