fix build error

vite.config.ts

@@ -1,11 +1,13 @@
 import { defineConfig } from "vite"
 import vue from "@vitejs/plugin-vue"
+import legacy from "@vitejs/plugin-legacy"
 
 export default defineConfig({
   build: {
     rollupOptions: {
       output: {
         manualChunks: {
+          file: ["file-saver", "client-zip"],
           editor: [
             "vue-codemirror",
             "codemirror",
@@ -16,5 +18,5 @@ export default defineConfig({
       },
     },
   },
-  plugins: [vue()],
+  plugins: [vue(), legacy({ targets: ["chrome 66", "not IE 11"] })],
 })