FIX: Extension's unwanted desktop opening

[SMoraisAnsys]

Description

A bug was introduced in #5966 where a user would have AEDT automatically opening to be closed right away when the extension did not open AEDT by default. This behavior was happening with the via_design.py extension where no AEDT extension is required by default and clicking on the close button triggered AEDT which was closed right after.

Issue linked

None

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).

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 85.29%. Comparing base (e54714f) to head (9031938).
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6304      +/-   ##
==========================================
- Coverage   85.29%   85.29%   -0.01%     
==========================================
  Files         173      173              
  Lines       65331    65331              
==========================================
- Hits        55724    55722       -2     
- Misses       9607     9609       +2     

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