⚡ re-enable PWA functionality via serviceworker

ref #37

src/components/OrgOverview.svelte

@@ -3,7 +3,6 @@
   let modal_open = false;
   let delete_org = {};
   import { RunnerOrganisationService } from "@odit/lfk-client-js";
-  import "gridjs/dist/theme/mermaid.css";
   import store from "../store";
   import OrgsEmptyState from "./OrgsEmptyState.svelte";
   import Toastify from "toastify-js";

src/components/TeamsOverview.svelte

@@ -3,7 +3,6 @@
   import Toastify from "toastify-js";
   import { RunnerTeamService } from "@odit/lfk-client-js";
   const teams_promise = RunnerTeamService.runnerTeamControllerGetAll();
-  import "gridjs/dist/theme/mermaid.css";
   import { users as usersstore } from "../store.js";
   import store from "../store";
   import TeamsEmptyState from "./TeamsEmptyState.svelte";