fix(messaging-documentation) - Fix Javascript Gatsby highlights

[lilla28]

Changes:

• Fixed gatsby highlights for Javascript codes as well

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 74.10%. Comparing base (085b86f) to head (3ef7123).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #640   +/-   ##
=======================================
  Coverage   74.10%   74.10%           
=======================================
  Files         242      242           
  Lines        7495     7495           
  Branches      830      890   +60     
=======================================
  Hits         5554     5554           
+ Misses       1744     1741    -3     
- Partials      197      200    +3     

see 3 files with indirect coverage changes

[kruplm]

The markup is not case-sensitive, but let's merge it for consistency with "csharp" being lower-case :)