ui: build: fix #941

packages/ui-default/build/main.ts

@@ -5,7 +5,6 @@ import chalk from 'chalk';
 import fs from 'fs-extra';
 import { globbySync } from 'globby';
 import path from 'path';
-import svgtofont from 'svgtofont';
 import webpack, { Stats } from 'webpack';
 import WebpackDevServer from 'webpack-dev-server';
 import pkg from '../package.json';
@@ -99,6 +98,7 @@ async function main() {
   const dir = process.cwd();
   process.chdir(root());
   if (argv.options.iconfont) {
+    const { default: svgtofont } = await import('svgtofont');
     await svgtofont({
       src: root('misc/icons'),
       dist: root('misc/.iconfont'),