chore: remove unused code and update comments

Author: sobird

command/delete.ts

@@ -9,7 +9,7 @@ export const deleteCommand = new Command('delete')
   .option('-t --token <token>', 'access token', '')
   .action(async (remote, options, { pcs }) => {
     if (pcs.resolve(remote) === pcs.resolve('/')) {
-      console.log(chalk.red('You are about to delete the root directory of the application, which will lose all data'));
+      console.log(chalk.redBright('You are about to delete the root directory of the application, which will lose all data'));
       const { confirm } = await prompts({
         type: 'confirm',
         name: 'confirm',

command/fetch.ts

@@ -4,8 +4,8 @@ import { Command } from '@commander-js/extra-typings';
 import chalk from 'chalk';
 
 export const fetchCommand = new Command('fetch')
-  .description('fetch source to remote')
-  .argument('[source]', 'source path', sep)
+  .description('offline download')
+  .argument('[url]', 'url', sep)
   .argument('[remote]', 'remote path', '.')
   .option('-t --token <token>', 'access token', '')
   .action(async (source, remote, options, { pcs }) => {