Add Cookie Notice Pro plugin with styles and Google Consent Mode integration

- Introduced Cookie Notice Pro plugin for GDPR compliance with customizable cookie consent popup.
- Added CSS styles for the cookie notice, including light and dark themes, animations, and responsive design.
- Implemented Google Consent Mode v2 with default denied settings and Google Tag Manager integration.
- Created Elementor Webhook Relay plugin to forward form submissions to Google Apps Script.

wp-content/mu-plugins/cookie-notice-pro-loader.php

@@ -0,0 +1,7 @@
+<?php
+/**
+ * Plugin Name: Cookie Notice Pro Loader
+ * Description: Auto-loader dla mu-plugin Cookie Notice Pro (WP nie skanuje rekursywnie mu-plugins).
+ */
+if (!defined('ABSPATH')) { exit; }
+require_once __DIR__ . '/cookie-notice-pro/cookie-notice-pro.php';