Moves EE specific env CSS into EE folder

Closes #10516

See merge request gitlab-org/gitlab-ee!10307

Force notifications to SAML email address for dedicated users

See merge request gitlab-org/gitlab-ee!9712

CE backport of forcing sending notifications to saml provided email

See merge request gitlab-org/gitlab-ce!25739

Extract EE specific files/lines for spec/models/project_services

See merge request gitlab-org/gitlab-ee!10023

Moves multiple clusters EE file

See merge request gitlab-org/gitlab-ee!10279

Reduce height of instance system message

Closes #58410

See merge request gitlab-org/gitlab-ce!25752

Move gfm_autocomplete_spec.rb out of quarantine

Closes #57995 and #56843

See merge request gitlab-org/gitlab-ce!25958

Move gfm_autocomplete_spec.rb out of quarantine (EE-port)

Closes gitlab-ce#57995 and gitlab-ce#56843

See merge request gitlab-org/gitlab-ee!9955

CE backport: Add additional link to 2fa page

See merge request gitlab-org/gitlab-ee!9877

Add additional link to 2fa page

See merge request gitlab-org/gitlab-ce!25731

Merge branch '10525-broken-ee-master-in-ee-spec-services-projects-prometheus-alerts-notify_service_spec-rb' into 'master'

Fix broken master for ee/spec/services/projects/prometheus/alerts/notify_service_spec.rb

Closes #10525

See merge request gitlab-org/gitlab-ee!10305

Add documentation about Auto DevOps at group level

Closes #58810

See merge request gitlab-org/gitlab-ce!26061

Includes a new section on our Auto Devops documentation about enabling
or disabling Auto DevOps at group level.

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/58810

Remove static JavaScript HAML fixtures

Closes #24753

See merge request gitlab-org/gitlab-ce!26019

Remove static JavaScript HAML fixtures (EE-port)

Closes gitlab-ce#24753

See merge request gitlab-org/gitlab-ee!9971

Only count active milestones as started

Closes #58782

See merge request gitlab-org/gitlab-ce!25969

Docs: note some apps not installable in group level cluster

See merge request gitlab-org/gitlab-ce!26249

As that is indeed available for group clusters.

GitHub import: Create new branches as project owner

See merge request gitlab-org/gitlab-ce!26335

Reject HEAD requests to info/refs endpoint

Closes #54579

See merge request gitlab-org/gitlab-ce!26334

Update pipeline detail view to accommodate post-merge pipelines

See merge request gitlab-org/gitlab-ce!25775

(cherry picked from commit 84c4f7680d9887d90c19a5ee9febefbabed74233)

(cherry picked from commit 26cba3b05fbf02e97bb6504382654209af4f8e78)

Replace all HAML fixtures with the generated HTML files.

(cherry picked from commit 0e488aa941ad1f40ad03d3c0a36b85729f12a773)