[Tech Debt] Optimize `DialEllipsisTooltip` truncation checks for pages with many instances

[valerydluski]

Description

DialEllipsisTooltip currently performs truncation detection per component instance using:

• window.resize listener
• ResizeObserver
• requestAnimationFrame scheduling
• DOM measurements (clientWidth, scrollWidth, getBoundingClientRect)

This works well for isolated usage, but may become expensive on screens rendering many instances at once.

Related issues

No response

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