Set simulation button default selected

[andreas-el]

Issue
Resolves #9538

• PR title captures the intent of the changes, and is fitting for release notes.
• Added appropriate release note label
• Commit history is consistent and clean, in line with the contribution guidelines.
• Make sure unit tests pass locally after every commit (git rebase -i main --exec 'pytest tests/ert/unit_tests -n logical -m "not integration_test"')

When applicable

• When there are user facing changes: Updated documentation
• New behavior or changes to existing untested code: Ensured that unit tests are added (See Ground Rules).
• Large PR: Prepare changes in small commits for more convenient review
• Bug fix: Add regression test for the bug
• Bug fix: Create Backport PR to latest release

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.85%. Comparing base (5ae6ece) to head (e101b82).
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #9548      +/-   ##
==========================================
- Coverage   91.86%   91.85%   -0.01%     
==========================================
  Files         433      433              
  Lines       26768    26768              
==========================================
- Hits        24590    24588       -2     
- Misses       2178     2180       +2     

Flag	Coverage Δ
cli-tests	39.78% <0.00%> (ø)
everest-models-test	34.67% <0.00%> (ø)
gui-tests	72.15% <100.00%> (ø)
integration-test	37.21% <0.00%> (-0.01%)	⬇️
performance-tests	51.97% <0.00%> (+0.01%)	⬆️
test	40.48% <0.00%> (+<0.01%)	⬆️
unit-tests	74.16% <100.00%> (+0.02%)	⬆️

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[codspeed-hq]

CodSpeed Performance Report

Merging #9548 will degrade performances by 72.01%

_{Comparing andreas-el:set_simulation_button_default_selected (e101b82) with main (e564b57)}

Summary

❌ 1 regressions
✅ 22 untouched benchmarks

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

Benchmarks breakdown

	Benchmark	main	andreas-el:set_simulation_button_default_selected	Change
❌	test_gui_snapshot	1.1 s	3.9 s	-72.01%

[berland]

🖱️