filesave.php updated

backend/filesave.php

@@ -5,7 +5,7 @@ $postData = file_get_contents("php://input");
 
 if(isset($postData) && !empty($postData)) {
     $request = json_decode($postData);
-    $username = trim($request->username);
+    $username = trim($request->File.id);
     $data = trim($request->File.text);
     $filename = trim($request->File.filename);
     $lang = trim($request->File.language);