[stable31] fix(code): don't wrap lines in code blocks, only in plaintext documents

[backportbot]

Backport of PR #7733

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 50.68%. Comparing base (4fc6d66) to head (b724ab2).
⚠️ Report is 2 commits behind head on stable31.

Additional details and impacted files

@@            Coverage Diff            @@
##           stable31    #7744   +/-   ##
=========================================
  Coverage     50.68%   50.68%           
=========================================
  Files           292      292           
  Lines         42332    42332           
  Branches        875      875           
=========================================
  Hits          21458    21458           
  Misses        20753    20753           
  Partials        121      121           

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

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.