Resolve "Improve pages load wait time experience"
What does this MR do?
Adds the warning described in #65304 (closed) that warns users that their GitLab Pages site will not be available immediately after the first deploy.
Screenshots
This MR has an EE port
https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/15594
Closes #65304 (closed)
Edited by Nathan Friend