Merge branch 'sh-fix-performance-bar-warnings' into 'master'

Fix performance bar warnings when Rugged is disabled

Closes #65491

See merge request gitlab-org/gitlab-ce!31395

app/assets/javascripts/performance_bar/components/detailed_metric.vue

@@ -44,7 +44,7 @@ export default {
 </script>
 <template>
   <div
-    v-if="currentRequest.details"
+    v-if="currentRequest.details && metricDetails"
     :id="`peek-view-${metric}`"
     class="view qa-performance-bar-detailed-metric"
   >