Fix all PHP 8.1 messages for upgrade.php

app/sofia_global_settings/app_defaults.php

@@ -68,7 +68,7 @@ if ($domains_processed == 1) {
 		}
 
 	//add settings that are not in the database
-		if (is_array($array) && count($array) > 0) {
+		if (!empty($array)) {
 			//grant temporary permissions
 				$p = new permissions;
 				$p->add('sofia_global_setting_add', 'temp');