Move plugin files to a subfolder

[MAILPOET-3988]

mailpoet/lib/Util/pQuery/pQuery.php

@@ -0,0 +1,20 @@
+<?php
+
+namespace MailPoet\Util\pQuery;
+
+use MailPoetVendor\pQuery\pQuery as pQuerypQuery;
+
+// extend pQuery class to use UTF-8 encoding when getting elements' inner/outer text
+// phpcs:ignore Squiz.Classes.ValidClassName
+class pQuery extends pQuerypQuery {
+  public static function parseStr($html): DomNode {
+    $parser = new Html5Parser($html);
+
+    if (!$parser->root instanceof DomNode) {
+      // this condition shouldn't happen it is here only for PHPStan
+      throw new \Exception('Renderer is not configured correctly');
+    }
+
+    return $parser->root;
+  }
+}