Update version to v3.5.0 and date to 2026-03-26

Author: fho4abcd

www/htdocs/version.php

@@ -2,5 +2,5 @@
 // This file defines the current version of the software.
 // It is the only place that needs to be changed with each new version.
 
-define('ABCD_VERSION', 'v3.4.0');
-define('DATE_VERSION', '2026-03-21');
+define('ABCD_VERSION', 'v3.5.0');
+define('DATE_VERSION', '2026-03-26');