style(reports): show text if no reviewers details

packages/components-faraday/src/components/Reviewers/ReviewersDetailsList.js

@@ -103,7 +103,9 @@ const ReviewersDetailsList = ({
         </Table>
       </ScrollContainer>
     </Root>
-  ) : null
+  ) : (
+    <div> No reviewers details </div>
+  )
 
 const ModalWrapper = compose(
   connect(state => ({