chore(firebase): fix typos in warning message

[Hebilicious]

🔗 Linked issue

❓ Type of change

• 📖 Documentation (updates to the documentation, readme, or JSdoc annotations)
• 🐞 Bug fix (a non-breaking change that fixes an issue)
• 👌 Enhancement (improving an existing functionality like performance)
• ✨ New feature (a non-breaking change that adds functionality)
• 🧹 Chore (updates to the build process or auxiliary tools and libraries)
• ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

📚 Description

📝 Checklist

• I have linked an issue or discussion.
• I have updated the documentation accordingly.

[codecov]

Codecov Report

Merging #1561 (ff65a2b) into main (8c0473c) will not change coverage.
The diff coverage is 0.00%.

@@           Coverage Diff           @@
##             main    #1561   +/-   ##
=======================================
  Coverage   76.48%   76.48%           
=======================================
  Files          73       73           
  Lines        7579     7579           
  Branches      751      751           
=======================================
  Hits         5797     5797           
  Misses       1781     1781           
  Partials        1        1           

Files Changed	Coverage Δ
src/presets/firebase.ts	21.36% <0.00%> (ø)

[pi0]

Thanks!