(EE) Prepare Repository#merge for migration to Gitaly

See merge request gitlab-org/gitlab-ee!2934

Instrument Geo::RepositorySyncWorker

See merge request gitlab-org/gitlab-ee!2936

Port of !14198 to gitlab-ee

See merge request gitlab-org/gitlab-ee!2905

New Crowdin translations

See merge request gitlab-org/gitlab-ee!2929

Impersonation no longer gets stuck on password change.

Closes #1870

See merge request gitlab-org/gitlab-ee!2904

Add Security Concerns section to reply by email documentation

[ci skip]

See merge request gitlab/gitlabhq!2191

Fix undefined method errors

See merge request gitlab-org/gitlab-ee!2938

Fix not working my-reaction filter

See merge request gitlab-org/gitlab-ee!2911

Document how Geo cursor works

Closes #3145

See merge request gitlab-org/gitlab-ee!2899

EE: SQL performance improvements for ProjectsController#show

See merge request gitlab-org/gitlab-ee!2930

EE port of revert-sidebar-title-attribute

See merge request gitlab-org/gitlab-ee!2917

# Conflicts:
#   doc/gitlab-geo/README.md

Add Geo rake task descriptions

Closes #3366

See merge request gitlab-org/gitlab-ee!2925

Revise GitLab Geo documentation

Closes #3365 and #3400

See merge request gitlab-org/gitlab-ee!2858

This ensures that if a pipeline is present for the last commit on a
project's homepage we only run 1 query to get the builds, instead of
running 2 queries.

See https://gitlab.com/gitlab-org/gitlab-ce/issues/36878#note_40073339
for more information.

This adds Project#latest_successful_pipeline_for and
Project#latest_successful_pipeline_for_default_branch. The 2nd method
memoizes the result (taking nil values into account) to ensure the
underlying query isn't executed multiple times when viewing a project's
homepage.

See https://gitlab.com/gitlab-org/gitlab-ce/issues/36878#note_40073607
for more information.

Removed issues link from the breadcrumbs in issue boards

Closes gitlab-ce#37875

See merge request gitlab-org/gitlab-ee!2920