[ML] AIOps: Enhance the UX for grouped results which only contain fie…

…ld / value pairs that appear in other groups (#148757)

## Summary

Related meta issue: #146162

This PR updates the UX for grouped results which only contain field /
value pairs that appear in other groups. In the updated text the '+' and
'more' are dropped from the label.

<img width="1098" alt="image"
src="https://user-images.githubusercontent.com/7405507/212317301-7cd40c62-d96f-4a0e-934e-2dc6e39e25a4.png">


### Checklist

Delete any items that are not applicable to this PR.

- [x] Any text added follows [EUI's writing
guidelines](https://elastic.github.io/eui/#/guidelines/writing), uses
sentence case text and includes [i18n
support](https://github.com/elastic/kibana/blob/main/packages/kbn-i18n/README.md)

x-pack/plugins/aiops/public/components/spike_analysis_table/spike_analysis_table_groups.tsx

@@ -292,13 +292,20 @@ export const SpikeAnalysisGroupsTable: FC<SpikeAnalysisTableProps> = ({
                     <br />
                   </>
                 ) : null}
-                {repeatedValues.length > 0 ? (
+                {repeatedValues.length > 0 && valuesBadges.length ? (
                   <FormattedMessage
                     id="xpack.aiops.explainLogRateSpikes.spikeAnalysisTableGroups.moreRepeatedLabel"
                     defaultMessage="+{count, plural, one {# more field/value pair} other {# more field/value pairs}} also appearing in other groups"
                     values={{ count: repeatedValues.length }}
                   />
                 ) : null}
+                {repeatedValues.length > 0 && !valuesBadges.length ? (
+                  <FormattedMessage
+                    id="xpack.aiops.explainLogRateSpikes.spikeAnalysisTableGroups.onlyMoreRepeatedLabel"
+                    defaultMessage="{count, plural, one {# field/value pair} other {# field/value pairs}} also appearing in other groups"
+                    values={{ count: repeatedValues.length }}
+                  />
+                ) : null}
               </EuiBadge>
               <EuiSpacer size="xs" />
             </>