fix: remove react-firebaseui dependency

Author: iitzIrFan

package.json

@@ -41,7 +41,6 @@
     "prism-react-renderer": "^2.3.0",
     "react": "^18.0.0",
     "react-dom": "^18.0.0",
-    "react-firebaseui": "^6.0.0",
     "react-icons": "^5.5.0",
     "rehype-katex": "^7.0.1",
     "remark-math": "^6.0.0",