chore: remove vercel.json

[utybo]

Netlify is the provider used (wayyy back in #61), we don't need this anymore.

Fixes #92

[github-actions]

🚀 Deployed on https://6727cace76b0de02700b1325--transcendent-frangollo-ac6638.netlify.app

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.64%. Comparing base (1307dac) to head (0f54674).
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##               main     #110   +/-   ##
=========================================
  Coverage     89.64%   89.64%           
  Complexity       24       24           
=========================================
  Files           202      202           
  Lines          4568     4568           
  Branches        441      441           
=========================================
  Hits           4095     4095           
  Misses          310      310           
  Partials        163      163           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.