src/vs/workbench/contrib/timeline/browser/timelinePane.ts/TimelinePane/pageSize
class TimelinePane:	get pageSize() {
		let pageSize = this.configurationService.getValue<number | null | undefined>('timeline.pageSize');
		if (pageSize === undefined || pageSize === null) {
			// If we are paging when scrolling, then add an extra item to the end to make sure the "Load more" item is out of view
			pageSize = Math.max(20, Math.floor((this.tree?.renderHeight ?? 0 / ItemHeight) + (this.pageOnScroll ? 1 : -1)));
		}
		return pageSize;
	}