migrate to "export default"

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

src/docker.js

@@ -2,12 +2,12 @@ import apps from './apps.js';
 import assert from 'node:assert';
 import BoxError from './boxerror.js';
 import constants from './constants.js';
-import * as dashboard from './dashboard.js';
+import dashboard from './dashboard.js';
 import debugModule from 'debug';
 import Docker from 'dockerode';
-import * as dockerRegistries from './dockerregistries.js';
+import dockerRegistries from './dockerregistries.js';
 import fs from 'node:fs';
-import * as mailServer from './mailserver.js';
+import mailServer from './mailserver.js';
 import os from 'node:os';
 import paths from './paths.js';
 import promiseRetry from './promise-retry.js';
@@ -15,41 +15,11 @@ import services from './services.js';
 import shellModule from './shell.js';
 import safe from 'safetydance';
 import timers from 'timers/promises';
-import * as volumes from './volumes.js';
+import volumes from './volumes.js';
 
 const debug = debugModule('box:docker');
 const shell = shellModule('docker');
 
-export {
-    ping,
-
-    info,
-    df,
-    buildImage,
-    downloadImage,
-    createContainer,
-    startContainer,
-    restartContainer,
-    stopContainer,
-    stopContainers,
-    deleteContainer,
-    deleteImage,
-    deleteContainers,
-    createSubcontainer,
-    inspect,
-    getContainerIp,
-    getEvents,
-    getStats,
-
-    update,
-
-    parseImageRef,
-
-    createExec,
-    startExec,
-    getExec,
-    resizeExec
-};
 
 const gConnection = new Docker({ socketPath: paths.DOCKER_SOCKET_PATH });
 
@@ -748,3 +718,34 @@ async function update(name, memory) {
 
     throw new BoxError(BoxError.DOCKER_ERROR, 'Unable to update container');
 }
+
+export default {
+    ping,
+
+    info,
+    df,
+    buildImage,
+    downloadImage,
+    createContainer,
+    startContainer,
+    restartContainer,
+    stopContainer,
+    stopContainers,
+    deleteContainer,
+    deleteImage,
+    deleteContainers,
+    createSubcontainer,
+    inspect,
+    getContainerIp,
+    getEvents,
+    getStats,
+
+    update,
+
+    parseImageRef,
+
+    createExec,
+    startExec,
+    getExec,
+    resizeExec
+};