Update docs, schema, and tests

Update Snowplow Guide - add periods to the end of each description

See merge request gitlab-org/gitlab!54102

Add GMA badge in user admin

See merge request gitlab-org/gitlab!54027

Cleanup remaining alerts service code

See merge request gitlab-org/gitlab!53534

Remove fake changelog entries

See merge request gitlab-org/gitlab!54101

Geo - Remove unnecessary steps from the docs to promote a secondary node with a Patroni standby cluster

See merge request gitlab-org/gitlab!54028

Merge branch '296967-update-new-user-invitation-email-test-variation-3-group-and-permission-information' into 'master'

Update new user invitation email with permission information

See merge request gitlab-org/gitlab!53275

- experiment for user acceptance.

For consistency

Remove obsolete DOMContentLoadedEventListener

See merge request gitlab-org/gitlab!53970

Expand docs for impersonated AuditEvents

See merge request gitlab-org/gitlab!53304

This documentation was considered "brief to the point of being
unclear." This expands it with helpful details.

Remove v-html from mr_widget_pipeline.vue

See merge request gitlab-org/gitlab!52564

Remove maintenance mode feature flag [RUN ALL RSPEC] [RUN AS-IF-FOSS]

See merge request gitlab-org/gitlab!53895

Fake changelog entries were generated as part of testing our release
tooling with the 'main' branch. Now that the testing is done, this
commit removes such entries.

More info on https://gitlab.com/gitlab-com/gl-infra/delivery/-/issues/1441

Add OpenID SSO icon

See merge request gitlab-org/gitlab!54026

[ci skip]

[ci skip]

Fix flacky spec

See merge request gitlab-org/gitlab!54084

Add other partner doc links

See merge request gitlab-org/gitlab!54083

Document gracefully handling of severity in generic alert payloads

See merge request gitlab-org/gitlab!54070

Follow-up of https://gitlab.com/gitlab-org/gitlab/-/merge_requests/53999

Docs: Troubleshoot Geo "Error syncing repository"

See merge request gitlab-org/gitlab!47057

Clarify separate Object Storage buckets in docs

See merge request gitlab-org/gitlab!54075

Updates the note on separate Object Storage buckets
to call out that the same one can now be used generally
unless using Helm.

Improve profile status emoji alignment

See merge request gitlab-org/gitlab!54078

Epics list using `issuable_list` [RUN ALL RSPEC] [RUN AS-IF-FOSS]

See merge request gitlab-org/gitlab!46769

Wait for labels to load before clicking the label.

Remove obsolete DOMContentLoadedEventListener

See merge request gitlab-org/gitlab!53875

Feature Flag group attribution for Manage

See merge request gitlab-org/gitlab!52876

Schedule user status cleanup [RUN ALL RSPEC] [RUN AS-IF-FOSS]

See merge request gitlab-org/gitlab!53620

Tweak doc intro wording

See merge request gitlab-org/gitlab!54074

Mention object storage in Sidekiq and Rails reference architectures

See merge request gitlab-org/gitlab!50852