N°4621 Fix naming inconsistencies in sources/*

sources/Application/UI/Base/Component/Spinner/Spinner.php

@@ -0,0 +1,27 @@
+<?php
+/**
+ * @copyright   Copyright (C) 2010-2021 Combodo SARL
+ * @license     http://opensource.org/licenses/AGPL-3.0
+ */
+
+namespace Combodo\iTop\Application\UI\Base\Component\Spinner;
+
+
+use Combodo\iTop\Application\UI\Base\UIBlock;
+
+/**
+ * Class Spinner
+ *
+ * @package Combodo\iTop\Application\UI\Base\Component\Spinner
+ */
+class Spinner extends UIBlock
+{
+	// Overloaded constants
+	public const BLOCK_CODE = 'ibo-spinner';
+	public const DEFAULT_HTML_TEMPLATE_REL_PATH = 'base/components/spinner/layout';
+
+	public function __construct(?string $sId = null)
+	{
+		parent::__construct($sId);
+	}
+}