Upgrade webpack 2 (#4748)

* update webpack to version 4

* repair build bug

* update package code

* optimize package script

* update seafile-editor version

* repair code bug

frontend/src/components/dialog/rename-group-dialog.js

@@ -2,8 +2,8 @@ import React from 'react';
 import PropTypes from 'prop-types';
 import { gettext } from '../../utils/constants';
 import { seafileAPI } from '../../utils/seafile-api';
+import { Utils } from '../../utils/utils';
 import { Modal, ModalHeader, ModalBody, ModalFooter, Input, Button } from 'reactstrap';
-import Utils from '../../utils/utils';
 import toaster from '../toast';
 
 class RenameGroupDialog extends React.Component {

frontend/src/markdown-editor.js

@@ -389,7 +389,7 @@ class MarkdownEditor extends React.Component {
         return;
       case 'update_users':
         for (var prop in data.users) {
-          if (data.users.hasOwnProperty(prop)) {
+          if (Object.prototype.hasOwnProperty.call(data.users, prop)) {
             if (prop === this.socket_id) {
               data.users[prop]['myself'] = true;
               break;
@@ -625,7 +625,7 @@ class MarkdownEditor extends React.Component {
     setTimeout(() => {
       let url = new URL(window.location.href);
       if (url.hash) {
-        window.location.href = window.location.href;
+        window.location.href = url;
       }
     }, 100);
   }

frontend/src/pages/org-admin/org-groups.js

@@ -3,7 +3,7 @@ import PropTypes from 'prop-types';
 import { Dropdown, DropdownToggle, DropdownMenu, DropdownItem } from 'reactstrap';
 import { siteRoot, gettext, orgID } from '../../utils/constants';
 import { seafileAPI } from '../../utils/seafile-api';
-import { Utils } from '../../utils/seafile-api';
+import { Utils } from '../../utils/utils';
 import toaster from '../../components/toast';
 import OrgGroupInfo from '../../models/org-group';
 import MainPanelTopbar from './main-panel-topbar';