vmui: fix issue preventing first query trace expansion

[Loori-R]

Describe Your Changes

Resolves an issue where the first query trace in VMUI failed to expand due to incorrect handling within useLayoutEffect. This fix involves replacing useLayoutEffect with useEffect in the useElementSize and useWindowSize hooks to ensure proper initialization and state updates.

#6186

Checklist

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• [ ] My change adheres VictoriaMetrics contributing guidelines.