fix: url

Author: astandrik

public/index.html

@@ -23,7 +23,7 @@
       window.systemSettings = {};
       window.userSettings = {};
       window.web_version = !'%REACT_APP_BACKEND%';
-      window.custom_backend = 'http://ydb-vla-dev02-000.search.yandex.net:8765';
+      window.custom_backend = '%NODE_ENV%' === 'development' && '%REACT_APP_BACKEND%';
       window.meta_backend = '%REACT_APP_META_BACKEND%'
     </script>
   </head>