⚡ Bolt: optimize scroll performance and re-renders#2
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This commit implements several performance optimizations in the document viewer: - Throttled scroll events using requestAnimationFrame to ensure updates happen at the display's refresh rate. - Cached heading elements in a Ref to avoid expensive querySelectorAll calls on every scroll tick. - Used a Ref for active heading tracking to prevent the scroll listener from being torn down and re-added on every heading change. - Added passive scroll listeners for improved scrolling performance. - Memoized core functions (processMarkdown, scrollToHeading) using useCallback to maintain reference stability. - Moved the matchesShortcut utility outside the component to avoid re-creation. - Cleaned up unused state and fixed linting issues. Co-authored-by: VagueDustin <127912586+VagueDustin@users.noreply.github.com>
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Implemented scroll event throttling, cached heading elements, and optimized state management to reduce unnecessary re-renders. High-frequency scroll events were previously causing excessive DOM queries and component re-renders, impacting performance on large documents. This change significantly reduces main thread work during scrolling and ensures the application remains responsive.
PR created automatically by Jules for task 525147790602385307 started by @VagueDustin