message: Minor fix to Empty Graph text
diff: @@ -117,7 +117,7 @@ export class EmptyGraphLayout extends React.Component<EmptyGraphLayoutProps, Emp
  <EmptyState className={emptyStateStyle}>
  <EmptyStateTitle>No namespace is selected</EmptyStateTitle>
  <EmptyStateInfo>
  - There is currently no namespace selected, please select one using the Namespace selection button.
  + There is currently no namespace selected, please select one using the Namespace selector.
  </EmptyStateInfo>
  </EmptyState>
  );
  