feat(MarkdownUtil): add sanitizeMarkdown function [WPB-10991]

[olafsulich]

WPB-10991 [Web] Show "drafted message" in second line in conversation list

Description

Sanitize markdown symbols to display message drafts.

Checklist

• mentions the JIRA issue in the PR name (Ex. [WPB-XXXX])
• PR has been self reviewed by the author;
• Hard-to-understand areas of the code have been commented;
• If it is a core feature, unit tests have been added;

[sonarqubecloud]

Quality Gate passed

Issues
3 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[przemvs]

LGTM!

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 90.47619% with 6 lines in your changes missing coverage. Please review.

Project coverage is 46.23%. Comparing base (118af9d) to head (95fe381).
Report is 6 commits behind head on dev.

Additional details and impacted files

@@            Coverage Diff             @@
##              dev   #18581      +/-   ##
==========================================
+ Coverage   46.14%   46.23%   +0.08%     
==========================================
  Files         875      875              
  Lines       26831    26887      +56     
  Branches     6070     6076       +6     
==========================================
+ Hits        12380    12430      +50     
- Misses      12904    12910       +6     
  Partials     1547     1547