src/vs/workbench/browser/layout.ts/Layout/updatePanelPosition
class Layout:	private updatePanelPosition() {
		const defaultPanelPosition = this.configurationService.getValue<string>(Settings.PANEL_POSITION);
		const panelPosition = this.storageService.get(Storage.PANEL_POSITION, StorageScope.WORKSPACE, defaultPanelPosition);

		this.state.panel.position = positionFromString(panelPosition || defaultPanelPosition);
	}