src/vs/workbench/contrib/notebook/browser/view/cellParts/cellProgressBar.ts/CellProgressBar/_updateForExecutionState
class CellProgressBar:	private _updateForExecutionState(element: ICellViewModel, e?: ICellExecutionStateChangedEvent): void {
		const exeState = e?.changed ?? this._notebookExecutionStateService.getCellExecution(element.uri);
		const progressBar = element.isInputCollapsed ? this._collapsedProgressBar : this._progressBar;
		if (exeState?.state === NotebookCellExecutionState.Executing && (!exeState.didPause || element.isInputCollapsed)) {
			showProgressBar(progressBar);
		} else {
			progressBar.hide();
		}
	}