/docs/security/acl/acl-system was renamed in e9a42df from PR #12460 to
/docs/security/acl. A corresponding redirect was not added for this
page, resulting in a 404 being returned when accessing the old URL
path.
This commit redirects the former URL path to the new location, and
also updates all links on the site to point to the new location.
* website: migrate to new nav-data format
* website: clean up unused intro content
* website: remove deprecated sidebar_title from frontmatter
* website: add react-content to fix global style import issue
The Agent token policy when using rexec should have `write` on "_rexec"
key prefix. Updated the exec command documentation to explicitly state
this requirement.