message: frontend: fix null when CatalogSource not available
diff: @@ -154,7 +154,7 @@ export const CatalogSourceList = withFallback((props: CatalogSourceListProps) =>
  export const CatalogSourcesPage: React.SFC<CatalogSourcePageProps> = (props) => {
  type Flatten = (resources: {[kind: string]: {data: K8sResourceKind[]}}) => K8sResourceKind[];
  - const flatten: Flatten = resources => resources.catalogSource.data;
  + const flatten: Flatten = resources => _.get(resources.catalogSource, 'data', []);
  return <MultiListPage
  {...props}
  