[Logs UI] Tweak copy in log alerts dialog (#64645)

x-pack/plugins/infra/public/components/alerting/logs/expression_editor/document_count.tsx

@@ -56,6 +56,11 @@ export const DocumentCount: React.FC<Props> = ({ comparator, value, updateCount,
     values: { value },
   });
 
+  const documentCountSuffix = i18n.translate('xpack.infra.logs.alertFlyout.documentCountSuffix', {
+    defaultMessage: '{value, plural, one {occurs} other {occur}}',
+    values: { value },
+  });
+
   return (
     <EuiFlexGroup gutterSize="s">
       <EuiFlexItem grow={false}>
@@ -122,6 +127,10 @@ export const DocumentCount: React.FC<Props> = ({ comparator, value, updateCount,
           </div>
         </EuiPopover>
       </EuiFlexItem>
+
+      <EuiFlexItem grow={false}>
+        <EuiExpression description={documentCountSuffix} value="" />
+      </EuiFlexItem>
     </EuiFlexGroup>
   );
 };