Update the table columns length to avoid exceeding the size limit in utf8mb4.

modules/user_admin/module.php

@@ -37,20 +37,20 @@ $install_queries[0] = array(
     "DROP TABLE IF EXISTS ".OGP_DB_PREFIX."users;",
     "CREATE TABLE ".OGP_DB_PREFIX."users (
         `user_id` int(11) NOT NULL auto_increment,
-        `users_login` varchar(255) NOT NULL,
-        `users_passwd` varchar(255) NOT NULL,
+        `users_login` varchar(128) NOT NULL,
+        `users_passwd` varchar(128) NOT NULL,
         `users_lang` varchar(20) NOT NULL default 'English',
         `users_role` varchar(30) NOT NULL default 'user',
         `users_group` varchar(100) NULL,
-        `users_fname` varchar(255) NULL,
-        `users_lname` varchar(255) NULL,
-        `users_email` varchar(255) NULL,
+        `users_fname` varchar(128) NULL,
+        `users_lname` varchar(128) NULL,
+        `users_email` varchar(128) NULL,
         `users_phone` varchar(12) NULL,
-        `users_city` varchar(255) NULL,
-        `users_province` varchar(255) NULL,
-        `users_country` varchar(255) NULL,
+        `users_city` varchar(128) NULL,
+        `users_province` varchar(128) NULL,
+        `users_country` varchar(128) NULL,
         `users_comment` text NULL,
-        `users_theme` varchar(255) NULL,
+        `users_theme` varchar(128) NULL,
         `user_expires` varchar(30) NOT NULL default 'X',
         PRIMARY KEY  (`users_login`),
 		UNIQUE KEY `id` (`user_id`)