fix: [IOCOM-2040] Handling of code and pre html blocks in old markdown

[Vangaorth]

Short description

This PR fixes a problem with the existing markdown component, where text was overflowing or being cut.

Horizontal overflow Android	Horizontal overflow iOS

Vertical cut Android	Vertical cut iOS

Fixed Android	Fixed iOS
a	b

List of changes proposed in this pull request

The problem arises when the input markdown string contains:

• a tab character (UTF-8), after a newline
• two or more subsequent newlines with four blank spaces before any text
  Such sequences causes the generated html to wrap the text into a <pre><code>text here</code></pre> block, that causes either horizontal overflow or vertical cutting (or both).
  To fix such problem, a custom styling for pre and code has been added to the markdown's CSS in order to render such blocks as a standard HTML paragraph.

How to test

Using the io-dev-api-server, generate a message containing above cases and check that it is rendered properly.

[github-actions]

PR Title Validation for conventional commit type

✅ All good! PR title follows the conventional commit type.

[github-actions]

Jira Pull Request Link

This Pull Request refers to Jira issues:

• IOCOM-2040

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 49.99%. Comparing base (11a5ba5) to head (0d55193).
Report is 2 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #6652   +/-   ##
=======================================
  Coverage   49.99%   49.99%           
=======================================
  Files        1544     1544           
  Lines       32163    32163           
  Branches     7292     7239   -53     
=======================================
  Hits        16079    16079           
- Misses      16033    16046   +13     
+ Partials       51       38   -13     

Files with missing lines	Coverage Δ
ts/components/ui/Markdown/utils.ts	62.96% <ø> (ø)

... and 13 files with indirect coverage changes

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