address some review comments

Author: ryan953

static/app/components/feedback/feedbackItem/feedbackItemHeader.tsx

@@ -54,12 +54,14 @@ export default function FeedbackItemHeader({eventData, feedbackItem}: Props) {
               project={feedbackItem.project}
               event={eventData}
             />
-            <Flex justify="flex-end">
-              <Flex gap={space(1)} align="center">
-                <SeenBy>{t('Seen by')}</SeenBy>
-                <FeedbackViewers feedbackItem={feedbackItem} />
+            {feedbackItem.seenBy.length ? (
+              <Flex justify="flex-end">
+                <Flex gap={space(1)} align="center">
+                  <SeenBy>{t('Seen by')}</SeenBy>
+                  <FeedbackViewers feedbackItem={feedbackItem} />
+                </Flex>
               </Flex>
-            </Flex>
+            ) : null}
           </Flex>
         </ErrorBoundary>
       ) : null}

static/app/components/feedback/feedbackItem/feedbackItemSection.tsx

@@ -60,6 +60,7 @@ const SectionTitle = styled('h3')`
   color: ${p => p.theme.textColor};
   font-size: ${p => p.theme.fontSizeMedium};
   text-transform: capitalize;
+  user-select: none;
 
   display: flex;
   gap: ${space(0.5)};