Enhance YearlyEventCalender day click interaction tests

[coderabbitai]

Background

The YearlyEventCalender component's test suite needs enhancement to better verify the day click interaction behavior.

Required Improvements

• Add assertions to verify the expanded state after clicking a day
• Add assertions to verify the collapsed state after clicking again
• Ensure event titles are properly shown/hidden during these interactions

References

• Original discussion: Added test cases for YearlyEventCalendar.tsx #3712 (comment)

/cc @syedali237

[github-actions]

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