feat(spotlight): add support for custom search-engines (#1200)

* feat(spotlight): add search settings link

* feat(search-engine): add to manage pages

* feat(spotlight): add children option for external search engines

* chore: revert search settings

* fix: deepsource issue

* fix: inconsistent breadcrum placement

* chore: address pull request feedback

packages/validation/src/form/i18n.ts

@@ -48,7 +48,7 @@ const handleStringError = (issue: z.ZodInvalidStringIssue) => {
     }
 
     return {
-      key: "errors.invalid_string.includes",
+      key: "errors.string.includes",
       params: {
         includes: issue.validation.includes,
       },