build: import babel

vite.config.ts

@@ -2,15 +2,26 @@ import { defineConfig } from "vite";
 import path from "path";
 import svgr from "vite-plugin-svgr";
 import react from "@vitejs/plugin-react";
+import { babel } from "@rollup/plugin-babel";
 import monacoEditor from "vite-plugin-monaco-editor";
 
-// https://vitejs.dev/config/
 export default defineConfig({
   root: "src",
   server: { port: 3000 },
   plugins: [
     svgr(),
     react(),
+    {
+      apply: "build", // apply only for build, not for serve
+      ...babel({
+        babelHelpers: "bundled",
+        extensions: [".js", ".jsx", ".ts", ".tsx"],
+        targets: {
+          edge: "109", // last version to support Windows 7
+          safari: "13", // macOS 10.15 Catalina
+        },
+      }),
+    },
     monacoEditor({
       languageWorkers: ["editorWorkerService", "typescript", "css"],
       customWorkers: [