Add missing param for aggregations.

Author: fmassot

src/components/QueryEditor/BucketAggregationsEditor/SettingsEditor/TermsSettingsEditor.tsx

@@ -78,15 +78,15 @@ export const TermsSettingsEditor = ({ bucketAgg }: Props) => {
         />
       </InlineField>
 
-      {/* <InlineField label="Missing" {...inlineFieldProps}>
+      <InlineField label="Missing" {...inlineFieldProps}>
         <Input
           id={`${baseId}-missing`}
           onBlur={(e) =>
             dispatch(changeBucketAggregationSetting({ bucketAgg, settingName: 'missing', newValue: e.target.value }))
           }
           defaultValue={bucketAgg.settings?.missing || bucketAggregationConfig.terms.defaultSettings?.missing}
         />
-      </InlineField> */}
+      </InlineField>
     </>
   );
 };