fixes for lint errors

added missing packages for lint
removed unecessary babel/polyfill

src/plugins/bookPlayer/plugin.js

@@ -1,13 +1,14 @@
 import loading from '../../components/loading/loading';
 import keyboardnavigation from '../../scripts/keyboardNavigation';
 import dialogHelper from '../../components/dialogHelper/dialogHelper';
-import dom from '../../scripts/dom';
+import '../../scripts/dom';
 import { Events } from 'jellyfin-apiclient';
 import './style.css';
 import 'material-design-icons-iconfont';
 import '../../elements/emby-button/paper-icon-button-light';
 import ServerConnections from '../../components/ServerConnections';
 import TableOfContents from './tableOfContents';
+import browser from '../../scripts/browser';
 
 export class BookPlayer {
     constructor() {

src/plugins/comicsPlayer/plugin.js

@@ -1,4 +1,5 @@
-import { Archive } from 'libarchive.js/main.js';
+// eslint-disable-next-line import/named, import/namespace
+import { Archive } from 'libarchive.js';
 import loading from '../../components/loading/loading';
 import dialogHelper from '../../components/dialogHelper/dialogHelper';
 import keyboardnavigation from '../../scripts/keyboardNavigation';

src/plugins/photoPlayer/plugin.js

@@ -11,11 +11,11 @@ export default class PhotoPlayer {
     play(options) {
         return new Promise(function (resolve, reject) {
             import('../../components/slideshow/slideshow').then(({default: Slideshow}) => {
-                var index = options.startIndex || 0;
+                const index = options.startIndex || 0;
 
-                var apiClient = ServerConnections.currentApiClient();
+                const apiClient = ServerConnections.currentApiClient();
                 apiClient.getCurrentUser().then(function(result) {
-                    var newSlideShow = new Slideshow({
+                    const newSlideShow = new Slideshow({
                         showTitle: false,
                         cover: false,
                         items: options.items,