Add more facets of availability to the documentation

See merge request gitlab-org/gitlab!29339

Move SameFilesystemError into service

See merge request gitlab-org/gitlab!29218

Added user statistics section

See merge request gitlab-org/gitlab!29266

Add write_registry scope to deploy tokens

See merge request gitlab-org/gitlab!28958

Try to get the offline docs to be similar - DAST

See merge request gitlab-org/gitlab!27471

Previously this error was raised in a job which would cause sidekiq to
retry, and not be logged consistently.

Adding preference for execute over call in Service classes

See merge request gitlab-org/gitlab!28989

Show only completely failed CI jobs in notifications

See merge request gitlab-org/gitlab!28284

Disallow id field for distinct batch counting

See merge request gitlab-org/gitlab!29310

Document vulnerability id, remediation objects

See merge request gitlab-org/gitlab!29146

Update the Security Scanner Integration doc
to document the vulnerability identifier
and the remediation objects.

See https://gitlab.com/gitlab-org/gitlab/-/issues/36777

Add warning to delete user and contribution docs

Closes #213192

See merge request gitlab-org/gitlab!29416

Resolve "Docs: Post-merge troubleshooting review"

See merge request gitlab-org/gitlab!28337

Document built-in "Enterprise" project templates

See merge request gitlab-org/gitlab!29307

Add migration helpers for managing check constraints and limits on text columns

See merge request gitlab-org/gitlab!29181

Using id field of the same table wouldn't make sense except in an
outer join

Update links in PAT docs

See merge request gitlab-org/gitlab!29408

Document RETIREJS_ADVISORY_DB_INSECURE DepScan var

See merge request gitlab-org/gitlab!28928

- Add generic migration helpers for managing check constraints
  Adding, removing, validating, checking if a constraint
  exists and generating a unique constraint name are supported
- Add migration helpers for adding/removing limits to text columns
- Add rspec tests for all the new migration helpers

Add WebIDE Theming Feature Flag

See merge request gitlab-org/gitlab!29412

Revert !28238 and !28723

See merge request gitlab-org/gitlab!29411

This reverts commit 1206dac4, reversing
changes made to b93dbdf7.

Quarantine flaky ndjson reader spec

See merge request gitlab-org/gitlab!29413

Consolidate information on reference architectures into one section

See merge request gitlab-org/gitlab!29354

Removed <hr/> markup in favor of utility classes

See merge request gitlab-org/gitlab!29285

Update SavedChangesMessage styling

See merge request gitlab-org/gitlab!29338

Update link to Status Page docs

See merge request gitlab-org/gitlab!27500

Add feature flag to support dark theme in the Web IDE

Replace some similar scss vars with palette colors

See merge request gitlab-org/gitlab!28722

Remove API for updating namespaces.plan_id

See merge request gitlab-org/gitlab!28890