src/vs/base/browser/ui/list/listView.ts/ListView/onDragLeave
class ListView:	private onDragLeave(event: IListDragEvent<T>): void {
		this.onDragLeaveTimeout.dispose();
		this.onDragLeaveTimeout = disposableTimeout(() => this.clearDragOverFeedback(), 100);
		if (this.currentDragData) {
			this.dnd.onDragLeave?.(this.currentDragData, event.element, event.index, event.browserEvent);
		}
	}