fix: properly remove event listeners in component unmount to prevent memory leaks#35670

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ZIRUL-0902:main

Commits on Feb 2, 2026

This PR fixes a memory leak caused by missing removeEventListener calls in component unmount. All event listeners are now properly cleaned up.
ZIRUL-0902
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Update fixtures/concurrent/time-slicing/src/index.js

ZIRUL-0902
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Copilot
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