Add Creative Elements templates and update index files

- Introduced new templates for catalog, checkout, contact, and error pages.
- Implemented caching headers and redirection in index.php files across various directories.
- Enhanced product and layout templates for better integration with Creative Elements.
- Added backoffice header styles and scripts for improved UI/UX in the admin panel.

modules/creativeelements/includes/editor-templates/library-layout.php

@@ -0,0 +1,35 @@
+<?php
+/**
+ * Creative Elements - live Theme & Page Builder
+ *
+ * @author    WebshopWorks, Elementor
+ * @copyright 2019-2022 WebshopWorks.com & Elementor.com
+ * @license   https://www.gnu.org/licenses/gpl-3.0.html
+ */
+
+namespace CE;
+
+defined('_PS_VERSION_') or die;
+?>
+<script type="text/template" id="tmpl-elementor-templates-modal__header">
+    <# var modalHeader = 'elementor-templates-modal__header'; #>
+    <div class="{{{ modalHeader }}}__logo-area"></div>
+    <div class="{{{ modalHeader }}}__menu-area"></div>
+    <div class="{{{ modalHeader }}}__items-area">
+    <# if ( closeType ) { #>
+        <div class="{{{ modalHeader }}}__close {{{ modalHeader }}}__close--{{{ closeType }}} {{{ modalHeader }}}__item">
+            <# if ( 'skip' === closeType ) { #>
+            <span><?= __('Skip') ?></span>
+            <# } #>
+            <i class="eicon-close" aria-hidden="true" title="<?= __('Close') ?>"></i>
+            <span class="elementor-screen-only"><?= __('Close') ?></span>
+        </div>
+    <# } #>
+        <div id="elementor-template-library-header-tools"></div>
+    </div>
+</script>
+
+<script type="text/template" id="tmpl-elementor-templates-modal__header__logo">
+    <img src="<?= esc_attr(_CE_URL_ . 'logo.png') ?>" alt="CE" width="26" height="26" style="margin-right: 10px;">
+    <span class="elementor-templates-modal__header__logo__title">{{{ title }}}</span>
+</script>