Migrate to native Node.js file access and improve UI

packages/web/src/main.tsx

@@ -4,6 +4,10 @@ import { App } from "./App"
 import { LocaleContextProvider } from "./i18n"
 import "./index.scss"
 
+if (navigator.platform === "MacIntel") {
+  document.documentElement.classList.add("mac")
+}
+
 render(
   <React.StrictMode>
     {/* <TitleBar /> */}
@@ -11,5 +15,5 @@ render(
       <App />
     </LocaleContextProvider>
   </React.StrictMode>,
-  document.getElementById("root")
+  document.getElementById("app")
 )