Update website and @ffmpeg/util

apps/website/package.json

@@ -21,6 +21,7 @@
     "@emotion/react": "^11.10.4",
     "@emotion/styled": "^11.10.4",
     "@ffmpeg/ffmpeg": "^0.12.0-alpha.0",
+    "@ffmpeg/util": "^0.12.0-alpha.0",
     "@fontsource/roboto": "^4.5.8",
     "@mdx-js/react": "^1.6.22",
     "@mui/icons-material": "^5.10.6",
@@ -28,11 +29,13 @@
     "clsx": "^1.2.1",
     "prism-react-renderer": "^1.3.5",
     "react": "^17.0.2",
+    "react-ace": "^10.1.0",
     "react-dom": "^17.0.2"
   },
   "devDependencies": {
     "@docusaurus/module-type-aliases": "2.1.0",
     "@tsconfig/docusaurus": "^1.0.5",
+    "@types/ace": "^0.0.48",
     "docusaurus-plugin-typedoc": "^0.17.5",
     "typedoc": "^0.23.15",
     "typedoc-plugin-markdown": "^3.13.6",