fix: hide gutenberg notice in classic editor

Signed-off-by: Bart Jaskulski <bjaskulski@protonmail.com>

CHANGELOG.md

+## [3.2.5] - 2024-07-23
+### Fixed
+- Hide Gutenberg-targeted notices in classic editor
+
 ## [3.2.4] - 2024-03-11
 ### Fixed
 - permission check on notice dismiss action

src/WPDesk/Notice/views/admin-head-js.php

@@ -6,3 +6,4 @@ if ( ! defined( 'ABSPATH' ) ) {
 <script type="text/javascript">
     <?php include dirname(__FILE__, 5) . '/assets/js/notice.js'; ?>
 </script>
+<style>.wpdesk-notice-gutenberg { display: none; }</style>