[8.16] [Observability Onboarding] Improve wording in auto-detect desc…

…ription (elastic#197460) (elastic#197626)

# Backport

This will backport the following commits from `main` to `8.16`:
- [[Observability Onboarding] Improve wording in auto-detect description
(elastic#197460)](elastic#197460)

<!--- Backport version: 9.4.3 -->

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

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Co-authored-by: Joe Reuter <[email protected]>

x-pack/plugins/observability_solution/observability_onboarding/public/application/onboarding_flow_form/use_custom_cards_for_category.tsx

@@ -57,7 +57,7 @@ export function useCustomCardsForCategory(
           description: i18n.translate(
             'xpack.observability_onboarding.useCustomCardsForCategory.autoDetectDescription',
             {
-              defaultMessage: 'Scan your host for log and metric files, auto-install integrations',
+              defaultMessage: 'Scan your host for log files, metrics, auto-install integrations',
             }
           ),
           extraLabelsBadges: [