refactor: fix typo in removeMeta option for removeItem

[Timbological]

🔗 Linked issue

#280

❓ 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

Fixed typo of removeMeta option in removeItem function as "removeMata", updated docs to reflect default behaviour or removeItem function when removeMeta argument is not specified

It resolves the problem of the option being spelled incorrectly and therefore the correct spelling not working. It would be a breaking change if someone has realized that it was spelled incorrectly and therefore has been using the incorrect spelling.
It also corrects the docs which imply that not providing a removeMeta argument to removeItem will result in the metadata being deleted which is not the case

Resolves #280

📝 Checklist

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

[nuxt-studio]

✅ Live Preview ready!

Name	Edit	Preview	Latest Commit
unstorage	Edit on Studio ↗︎	View Live Preview	358e29b

[codecov]

Codecov Report

Merging #281 (c24195e) into main (a0a1cdd) will increase coverage by 0.39%.
Report is 1 commits behind head on main.
The diff coverage is 100.00%.

❗ Current head c24195e differs from pull request most recent head 358e29b. Consider uploading reports for the commit 358e29b to get more accurate results

@@            Coverage Diff             @@
##             main     #281      +/-   ##
==========================================
+ Coverage   76.55%   76.94%   +0.39%     
==========================================
  Files          26       26              
  Lines        3169     3223      +54     
  Branches      473      473              
==========================================
+ Hits         2426     2480      +54     
  Misses        742      742              
  Partials        1        1              

Files Changed	Coverage Δ
src/index.ts	100.00% <100.00%> (ø)
src/storage.ts	85.39% <100.00%> (ø)
src/types.ts	100.00% <100.00%> (ø)

[pi0]

Thanks for sharp eyes 💯 (i have added a small backward compatibility check to avoid breaking users)