move OpenAPI config to App component rather than Login

src/components/Login.svelte

@@ -4,7 +4,6 @@
   import { _ } from "svelte-i18n";
   store.init();
   import { OpenAPI, AuthService } from "@odit/lfk-client-js";
-  OpenAPI.BASE = config.baseurl;
   import Toastify from "toastify-js";
   // ------
   let username = "demo";