Patches changes from ce to ee for explore-dispatcher-refactor.

See merge request gitlab-org/gitlab-ee!3977

EE branch for https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/16300

See merge request gitlab-org/gitlab-ee!3963

Add Geo support for CI job artifacts

Closes #2388

See merge request gitlab-org/gitlab-ee!3935

Fix 500 error when visiting a commit where the blobs do not exist (nil blobs) -- EE merge edition

Closes gitlab-ce#41491

See merge request gitlab-org/gitlab-ee!3987

Fix https://gitlab.com/gitlab-org/gitlab-ce/issues/41491

Conflicts:
	app/assets/stylesheets/pages/diff.scss
	app/views/projects/diffs/_stats.html.haml

as opposed to files in an object store.

Removes potential race condition specs from Groups::DestroyService

See merge request gitlab-org/gitlab-ee!3999

# Conflicts:
#   app/assets/javascripts/dispatcher.js

# Conflicts:
#   app/assets/javascripts/dispatcher.js

Remove Beta notice for Clusters

See merge request gitlab-org/gitlab-ee!3996

EE port of ph-dispatcher-1

See merge request gitlab-org/gitlab-ee!3965

Merge branch '4242-failure-in-spec-ee-spec-services-ee-geo-hashed_storage_attachments_event_store_spec-rb' into 'master'

Resolve "Failure in spec/ee/spec/services/ee/projects/hashed_storage/migrate_attachments_service_spec.rb"

Closes #4242

See merge request gitlab-org/gitlab-ee!3995

Ee 34312 eslint vue plugin

See merge request gitlab-org/gitlab-ee!3983

Properly disable WebMock and fix spec

Closes #4528

See merge request gitlab-org/gitlab-ee!3988

CE upstream - Tuesday

Closes #4519, #3953, #4308, gitlab-org/release/tasks#13, and gitaly#886

See merge request gitlab-org/gitlab-ee!3978

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Fix group hooks mock

Closes #4519

See merge request gitlab-org/gitlab-ee!3982

(cherry picked from commit 1b16ffac)

5800fe16 Fix group hooks mock

Refactor dispatcher dashboard projects route (EE Version)

See merge request gitlab-org/gitlab-ee!3985

Refactor dispatcher dashboard issues path (EE)

See merge request gitlab-org/gitlab-ee!3968

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Refactor dashboard milestone show inside dispatcher (EE)

See merge request gitlab-org/gitlab-ee!3962

Refactor dashboard milestone index (EE)

See merge request gitlab-org/gitlab-ee!3961

Restore sidebar collapse button padding (EE Version)

See merge request gitlab-org/gitlab-ee!3975