[8.11] [Enterprise Search]Render native connector docs conditionally (#…

…169121) (#169153)

# Backport

This will backport the following commits from `main` to `8.11`:
- [[Enterprise Search]Render native connector docs conditionally
(#169121)](#169121)

<!--- Backport version: 8.9.7 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sqren/backport)

<!--BACKPORT [{"author":{"name":"Efe Gürkan
YALAMAN","email":"[email protected]"},"sourceCommit":{"committedDate":"2023-10-17T17:14:45Z","message":"[Enterprise
Search]Render native connector docs conditionally (#169121)\n\n##
Summary\r\n\r\n<img width=\"772\" alt=\"Screenshot 2023-10-17 at 16 36
45\"\r\nsrc=\"https://github.com/elastic/kibana/assets/1410658/f668ab82-485d-46a6-8598-c1c9973b6255\">\r\n\r\n##
Release Note\r\nExternal documentation links are rendered conditionally
now to avoid\r\nempty links.\r\n\r\n### Checklist\r\n- [x] [Unit or
functional\r\ntests](https://www.elastic.co/guide/en/kibana/master/development-tests.html)\r\nwere
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Summary\r\n\r\n<img width=\"772\" alt=\"Screenshot 2023-10-17 at 16 36
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Release Note\r\nExternal documentation links are rendered conditionally
now to avoid\r\nempty links.\r\n\r\n### Checklist\r\n- [x] [Unit or
functional\r\ntests](https://www.elastic.co/guide/en/kibana/master/development-tests.html)\r\nwere
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Summary\r\n\r\n<img width=\"772\" alt=\"Screenshot 2023-10-17 at 16 36
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Release Note\r\nExternal documentation links are rendered conditionally
now to avoid\r\nempty links.\r\n\r\n### Checklist\r\n- [x] [Unit or
functional\r\ntests](https://www.elastic.co/guide/en/kibana/master/development-tests.html)\r\nwere
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BACKPORT-->

Co-authored-by: Efe Gürkan YALAMAN <[email protected]>

x-pack/plugins/enterprise_search/public/applications/enterprise_search_content/components/search_index/connector/native_connector_configuration/research_configuration.tsx

@@ -44,17 +44,19 @@ export const ResearchConfiguration: React.FC<ResearchConfigurationProps> = ({
             )}
           </EuiLink>
         </EuiFlexItem>
-        <EuiFlexItem grow={false}>
-          <EuiLink target="_blank" href={externalDocsUrl}>
-            {i18n.translate(
-              'xpack.enterpriseSearch.content.indices.configurationConnector.researchConfiguration.serviceDocumentationLinkLabel',
-              {
-                defaultMessage: '{name} documentation',
-                values: { name },
-              }
-            )}
-          </EuiLink>
-        </EuiFlexItem>
+        {externalDocsUrl && (
+          <EuiFlexItem grow={false}>
+            <EuiLink target="_blank" href={externalDocsUrl}>
+              {i18n.translate(
+                'xpack.enterpriseSearch.content.indices.configurationConnector.researchConfiguration.serviceDocumentationLinkLabel',
+                {
+                  defaultMessage: '{name} documentation',
+                  values: { name },
+                }
+              )}
+            </EuiLink>
+          </EuiFlexItem>
+        )}
       </EuiFlexGroup>
     </>
   );