Update the Enable Monitor Management links

[paulb-elastic]

The Enable Monitor Management page contains two URL links that need to be updated to the correct location for the Public Beta

ACs:

• @drewpost to confirm the details of the URL locations*
• Update the Request access button to link to the correct location
  • Details in https://github.com/elastic/kibana/issues/128594
• Update the Read the docs link to refer to the correct location
  • https://docs.google.com/document/d/1hkzFibu9LggPWXQqfbAd0mMlV75wCME7_BebXlEH-oI/

(* when we last spoke, @drewpost has details of how to use the service in an email, which should at the least be moved to a public Google doc).

[paulb-elastic]

Updated the AC with the read the docs link (https://docs.google.com/document/d/1hkzFibu9LggPWXQqfbAd0mMlV75wCME7_BebXlEH-oI/)

[dominiqueclarke]

The request access link LGTM in production. Takes you to https://docs.google.com/forms/d/e/1FAIpQLSfWPWhpGmKzE8KteuRywVRqqKEhahG-494q8tIldZMp3xo2SQ/viewform