Fix broken ML documentation links after Kibana repository restructure (#3042) (#3046)

* Initial plan

* Fix broken links in ootb-ml-jobs-metrics-ui.asciidoc



* Fix broken links in all ML documentation files



* Fix inconsistent branch variable in APM documentation



---------



(cherry picked from commit c801d1e)

Co-authored-by: Copilot <198982749+Copilot@users.noreply.github.com>
Co-authored-by: nastasha-solomon <79124755+nastasha-solomon@users.noreply.github.com>

Author: 3 people

docs/en/stack/ml/get-started/ml-gs-jobs.asciidoc

@@ -43,7 +43,7 @@ For more information, see <<ml-ad-datafeeds>>, <<ml-buckets>>, and
 If you want to see all of the configuration details for your jobs and {dfeeds},
 you can do so on the *Machine Learning* > *Anomaly Detection* > *Jobs* page. 
 Alternatively, you can see the configuration files in
-https://github.com/elastic/kibana/tree/{branch}/x-pack/plugins/ml/server/models/data_recognizer/modules/sample_data_weblogs[GitHub
+https://github.com/elastic/kibana/tree/{branch}/x-pack/platform/plugins/shared/ml/server/models/data_recognizer/modules/sample_data_weblogs[GitHub
 ]. For the purposes of this tutorial, however, here's a quick overview of the
 goal of each job: