src/vs/workbench/contrib/notebook/common/notebookOptions.ts/NotebookOptions/computeIndicatorPosition
class NotebookOptions:	computeIndicatorPosition(totalHeight: number, viewType?: string) {
		const { bottomToolbarGap } = this.computeBottomToolbarDimensions(viewType);

		return {
			bottomIndicatorTop: totalHeight - bottomToolbarGap - this._layoutConfiguration.cellBottomMargin,
			verticalIndicatorHeight: totalHeight - bottomToolbarGap
		};
	}