feat: allow to open up to three terminals (#22)

packages/bolt/app/root.tsx

@@ -7,6 +7,7 @@ import { stripIndents } from './utils/stripIndent';
 
 import reactToastifyStyles from 'react-toastify/dist/ReactToastify.css?url';
 import globalStyles from './styles/index.scss?url';
+import xtermStyles from '@xterm/xterm/css/xterm.css?url';
 
 import 'virtual:uno.css';
 
@@ -19,6 +20,7 @@ export const links: LinksFunction = () => [
   { rel: 'stylesheet', href: tailwindReset },
   { rel: 'stylesheet', href: globalStyles },
   { rel: 'stylesheet', href: reactToastifyStyles },
+  { rel: 'stylesheet', href: xtermStyles },
   {
     rel: 'preconnect',
     href: 'https://fonts.googleapis.com',