Update dependencies and fix whitespace formatting in isTTSEnabled function in tts.ts

package.json

@@ -50,6 +50,7 @@
     "rehype-mathjax": "4.0.3",
     "remark-gfm": "3.0.1",
     "remark-math": "5.1.1",
+    "turndown": "^7.1.3",
     "yt-transcript": "^0.0.2",
     "zustand": "^4.5.0"
   },
@@ -63,6 +64,7 @@
     "@types/react": "18.2.48",
     "@types/react-dom": "18.2.18",
     "@types/react-syntax-highlighter": "^15.5.11",
+    "@types/turndown": "^5.0.4",
     "autoprefixer": "^10.4.17",
     "postcss": "^8.4.33",
     "prettier": "3.2.4",