Fixed sum description

src/Appwrite/Utopia/Response/Model/BaseList.php

@@ -34,7 +34,7 @@ class BaseList extends Model
         if ($paging) {
             $this->addRule('sum', [
                 'type' => self::TYPE_INTEGER,
-                'description' => 'Total sum of items in the list.',
+                'description' => 'Total number of items available on the server.',
                 'default' => 0,
                 'example' => 5,
             ]);