Enable more react pages (#19935)

* enable more react landing pages

* move nextjs page logic to separate middleware

* enable codespaces landing page + fixes

* enable /education

* enable /admin

* use pathToRegexp to match routes for react rendering

* run lint

* fix: typo in url

* update sidebar test

components/landing/CodeExamples.tsx

@@ -4,6 +4,7 @@ import { ArrowRightIcon, SearchIcon } from '@primer/octicons-react'
 import { useProductLandingContext } from 'components/context/ProductLandingContext'
 import { useTranslation } from 'components/hooks/useTranslation'
 import { CodeExampleCard } from 'components/landing/CodeExampleCard'
+import { Link } from 'components/Link'
 
 const PAGE_SIZE = 6
 export const CodeExamples = () => {
@@ -60,19 +61,19 @@ export const CodeExamples = () => {
       )}
 
       {isSearching && searchResults.length === 0 && (
-        <div className="d-none py-4 text-center color-text-secondary font-mktg">
+        <div className="py-4 text-center color-text-secondary font-mktg">
           <div className="mb-3">
             <SearchIcon size={24} />{' '}
           </div>
           <h3 className="text-normal">
-            {t('sorry')} <strong className="js-filter-card-value"></strong>
+            {t('sorry')} <strong>{search}</strong>
           </h3>
           <p className="my-3 f4">
             {t('no_example')} <br /> {t('try_another')}
           </p>
-          <a href="https://github.com/github/docs/blob/main/data/variables/discussions_community_examples.yml">
-            {t('add_your_community')} <ArrowRightIcon />
-          </a>
+          <Link href="https://github.com/github/docs/blob/main/data/variables/actions_code_examples.yml">
+            {t('learn')} <ArrowRightIcon />
+          </Link>
         </div>
       )}
     </div>