DOCS: Add hint for toolkit icon visiblity

[Ronaldo-SIPI]

Description

Please provide a brief description of the changes made in this pull request.

Issue linked

#6118

Checklist

• I have tested my changes locally.
• I have added necessary documentation or updated existing documentation.
• I have followed the coding style guidelines of this project.
• I have added appropriate tests (unit, integration, system).
• I have reviewed my changes before submitting this pull request.
• I have linked the issue or issues that are solved by the PR if any.
• I have agreed with the Contributor License Agreement (CLA).

[ansys-reviewer-bot]

Thanks for opening a Pull Request. If you want to perform a review write a comment saying:

@ansys-reviewer-bot review

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 85.15%. Comparing base (aa5a0f7) to head (dd7130c).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #6123   +/-   ##
=======================================
  Coverage   85.14%   85.15%           
=======================================
  Files         167      167           
  Lines       63594    63594           
=======================================
+ Hits        54147    54152    +5     
+ Misses       9447     9442    -5     

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.