migrate to "export default"

also, set no-use-before-define in linter

src/updater.js

@@ -1,51 +1,34 @@
 import apps from './apps.js';
-import * as appstore from './appstore.js';
+import appstore from './appstore.js';
 import assert from 'node:assert';
 import AuditSource from './auditsource.js';
 import BoxError from './boxerror.js';
-import * as backupSites from './backupsites.js';
-import * as backuptask from './backuptask.js';
-import * as community from './community.js';
+import backupSites from './backupsites.js';
+import backuptask from './backuptask.js';
+import community from './community.js';
 import constants from './constants.js';
-import * as cron from './cron.js';
+import cron from './cron.js';
 import { CronTime } from 'cron';
 import crypto from 'node:crypto';
 import debugModule from 'debug';
-import * as df from './df.js';
+import df from './df.js';
 import eventlog from './eventlog.js';
 import fs from 'node:fs';
 import locks from './locks.js';
-import * as notifications from './notifications.js';
+import notifications from './notifications.js';
 import os from 'node:os';
 import path from 'node:path';
 import paths from './paths.js';
 import promiseRetry from './promise-retry.js';
 import safe from 'safetydance';
 import semver from 'semver';
-import * as settings from './settings.js';
+import settings from './settings.js';
 import shellModule from './shell.js';
 import tasks from './tasks.js';
 
 const debug = debugModule('box:updater');
 const shell = shellModule('updater');
 
-export {
-    setAutoupdatePattern,
-    getAutoupdatePattern,
-
-    startBoxUpdateTask,
-    updateBox,
-
-    autoUpdate,
-
-    notifyBoxUpdate,
-
-    checkForUpdates,
-    checkAppUpdate,
-    checkBoxUpdate,
-
-    getBoxUpdate,
-};
 
 const RELEASES_PUBLIC_KEY = path.join(import.meta.dirname, 'releases.gpg');
 const UPDATE_CMD = path.join(import.meta.dirname, 'scripts/update.sh');
@@ -380,3 +363,21 @@ async function checkForUpdates(options) {
     // raise notifications here because the updatechecker runs regardless of auto-updater cron job
     await raiseNotifications();
 }
+
+export default {
+    setAutoupdatePattern,
+    getAutoupdatePattern,
+
+    startBoxUpdateTask,
+    updateBox,
+
+    autoUpdate,
+
+    notifyBoxUpdate,
+
+    checkForUpdates,
+    checkAppUpdate,
+    checkBoxUpdate,
+
+    getBoxUpdate,
+};