src/vs/workbench/services/views/browser/viewDescriptorService.ts/ViewDescriptorService/getViewContainerByViewId
class ViewDescriptorService:	getViewContainerByViewId(viewId: string): ViewContainer | null {
		const containerId = this.viewDescriptorsCustomLocations.get(viewId);

		return containerId ?
			this.viewContainersRegistry.get(containerId) ?? null :
			this.getDefaultContainerById(viewId);
	}