refactor: refactoring imports

将来ESMに移行しやすいように
Related: #7658

なんかmochaが起動しなくなってるけど理由不明
すぐ直したい

src/misc/download-url.ts

@@ -3,11 +3,11 @@ import * as stream from 'stream';
 import * as util from 'util';
 import { URL } from 'url';
 import fetch from 'node-fetch';
-import { getAgentByUrl } from './fetch';
+import { getAgentByUrl } from './fetch.js';
 import { AbortController } from 'abort-controller';
-import config from '@/config';
+import config from '@/config/index.js';
 import * as chalk from 'chalk';
-import Logger from '../services/logger';
+import Logger from '@/services/logger.js';
 
 const pipeline = util.promisify(stream.pipeline);