fix(mindmap): correctly render ampersand (&)

[nour0205]

📑 Summary

Fixes an issue where ampersands (&) were not rendering properly in Mindmap nodes. This was caused by using .text(description), which escapes special characters, instead of .html(description).

Resolves #6308

📏 Design Decisions

Issue: When rendering text inside Mindmap nodes, .text() was escaping special characters like &, causing them to display incorrectly.
Solution: Updated createText.ts to use .html(description) instead of .text(description), ensuring proper rendering.
Impact: This fix allows ampersands (&) and other special HTML characters to be displayed correctly without breaking existing functionality.

📋 Tasks

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commit: f993640

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 3.89%. Comparing base (de40d80) to head (f993640).

Files with missing lines	Patch %	Lines
packages/mermaid/src/rendering-util/createText.ts	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           develop   #6315      +/-   ##
==========================================
- Coverage     3.89%   3.89%   -0.01%     
==========================================
  Files          397     398       +1     
  Lines        41955   41966      +11     
  Branches       637     637              
==========================================
  Hits          1634    1634              
- Misses       40321   40332      +11     

Flag	Coverage Δ
unit	3.89% <0.00%> (-0.01%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
packages/mermaid/src/rendering-util/createText.ts	0.50% <0.00%> (ø)

... and 1 file with indirect coverage changes

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Build	Status	Details	Updated (UTC)
default (Inspect)	⚠️ Changes detected (Review)	75 changed	Feb 23, 2025, 7:42 PM

[nour0205]

Hi @sidharthv96 would you be able to review the Argos check on this PR? Let me know if anything needs to be adjusted. Thanks!