[Search] Update title on create connector page (#178737)

## Summary

Update new connector page title.
<img width="1262" alt="Screenshot 2024-03-14 at 15 51 11"
src="https://github.com/elastic/kibana/assets/1410658/402fa6e8-ede1-4580-aebb-6087f58b1917">


### 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)
- [ ]
[Documentation](https://www.elastic.co/guide/en/kibana/master/development-documentation.html)
was added for features that require explanation or tutorials
- [ ] [Unit or functional
tests](https://www.elastic.co/guide/en/kibana/master/development-tests.html)
were updated or added to match the most common scenarios
- [ ] [Flaky Test
Runner](https://ci-stats.kibana.dev/trigger_flaky_test_runner/1) was
used on any tests changed
- [x] Any UI touched in this PR is usable by keyboard only (learn more
about [keyboard accessibility](https://webaim.org/techniques/keyboard/))
- [x] Any UI touched in this PR does not create any new axe failures
(run axe in browser:
[FF](https://addons.mozilla.org/en-US/firefox/addon/axe-devtools/),
[Chrome](https://chrome.google.com/webstore/detail/axe-web-accessibility-tes/lhdoppojpmngadmnindnejefpokejbdd?hl=en-US))
- [x] This was checked for [cross-browser
compatibility](https://www.elastic.co/support/matrix#matrix_browsers)

x-pack/plugins/enterprise_search/public/applications/enterprise_search_content/components/new_index/new_search_index_page.tsx

@@ -41,7 +41,7 @@ function getTitle(method: string, serviceType: string): string {
         Boolean(serviceType) && CONNECTORS.find((item) => item.serviceType === serviceType);
       return connector
         ? i18n.translate('xpack.enterpriseSearch.content.new_index.connectorTitleWithServiceType', {
-            defaultMessage: 'New {name} search index',
+            defaultMessage: 'New {name} connector',
             values: {
               name: connector.name,
             },