[8.18] [UII] Remove extra space when building subcategory in integrations URL (#235684) (#235861)

# Backport

This will backport the following commits from `main` to `8.18`:
- [[UII] Remove extra space when building subcategory in integrations
URL (#235684)](#235684)

<!--- Backport version: 9.6.6 -->

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

<!--BACKPORT [{"author":{"name":"Jen
Huang","email":"[email protected]"},"sourceCommit":{"committedDate":"2025-09-19T20:22:09Z","message":"[UII]
Remove extra space when building subcategory in integrations URL
(#235684)\n\n## Summary\n\nIn integrations browse experience, when user
clicks into a subcategory\nsuch as Security > DNS, an extra space is
added to the
URL:\n`/app/integrations/browse/security/dns_security%20`\n\nReloading
the page with the extra space causes no results to be returned\nbecause
we try to do exact matching on `dns_security%20` subcategory.\n\nThis PR
fixes this bug by removing the extra
space.","sha":"4d433cefbea1dffadcc20c1a23c6e34a620bd436","branchLabelMapping":{"^v9.2.0$":"main","^v(\\d+).(\\d+).\\d+$":"$1.$2"}},"sourcePullRequest":{"labels":["release_note:skip","Team:Fleet","backport:all-open","v9.2.0"],"title":"[UII]
Remove extra space when building subcategory in integrations
URL","number":235684,"url":"https://github.com/elastic/kibana/pull/235684","mergeCommit":{"message":"[UII]
Remove extra space when building subcategory in integrations URL
(#235684)\n\n## Summary\n\nIn integrations browse experience, when user
clicks into a subcategory\nsuch as Security > DNS, an extra space is
added to the
URL:\n`/app/integrations/browse/security/dns_security%20`\n\nReloading
the page with the extra space causes no results to be returned\nbecause
we try to do exact matching on `dns_security%20` subcategory.\n\nThis PR
fixes this bug by removing the extra
space.","sha":"4d433cefbea1dffadcc20c1a23c6e34a620bd436"}},"sourceBranch":"main","suggestedTargetBranches":[],"targetPullRequestStates":[{"branch":"main","label":"v9.2.0","branchLabelMappingKey":"^v9.2.0$","isSourceBranch":true,"state":"MERGED","url":"https://github.com/elastic/kibana/pull/235684","number":235684,"mergeCommit":{"message":"[UII]
Remove extra space when building subcategory in integrations URL
(#235684)\n\n## Summary\n\nIn integrations browse experience, when user
clicks into a subcategory\nsuch as Security > DNS, an extra space is
added to the
URL:\n`/app/integrations/browse/security/dns_security%20`\n\nReloading
the page with the extra space causes no results to be returned\nbecause
we try to do exact matching on `dns_security%20` subcategory.\n\nThis PR
fixes this bug by removing the extra
space.","sha":"4d433cefbea1dffadcc20c1a23c6e34a620bd436"}}]}]
BACKPORT-->

Co-authored-by: Jen Huang <[email protected]>

Author: kibanamachine

x-pack/platform/plugins/shared/fleet/public/constants/page_paths.ts

@@ -131,7 +131,7 @@ export const pagePathGetters: {
   }) => {
     const categoryPath =
       category && subCategory
-        ? `/${category}/${subCategory} `
+        ? `/${category}/${subCategory}`
         : category && !subCategory
         ? `/${category}`
         : ``;