fix(client): don't break LaTeX when replacing carriage returns

[remarkablemark]

What is the motivation for this pull request?

fix(client): don't break LaTeX when replacing carriage returns

Fixes #917

Related to remarkablemark/html-react-parser#1634

What is the current behavior?

All \r are removed from the HTML string, even if the raw string is formatted as \\r.

What is the new behavior?

\\r is no longer removed.

Checklist:

• Conventional Commits
• Tests
• Types
• Documentation

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 93.10%. Comparing base (013e027) to head (d69bc66).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #923      +/-   ##
==========================================
+ Coverage   92.90%   93.10%   +0.19%     
==========================================
  Files           7        7              
  Lines         141      145       +4     
  Branches       30       30              
==========================================
+ Hits          131      135       +4     
  Misses          8        8              
  Partials        2        2              

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[github-actions]

size-limit report 📦

Path	Size	Loading time (3g)	Running time (snapdragon)	Total time
dist/html-dom-parser.min.js	2.11 KB (+3.41% 🔺)	43 ms (+3.41% 🔺)	139 ms (+707.93% 🔺)	181 ms