Align EmailValidator to validate_email gem implementation.

Closes #57352

See merge request gitlab-org/gitlab-ce!24971

Remove select2-rails (select2 is now installed via yarn)

See merge request gitlab-org/gitlab-ce!25929

Docs: intro to CI/CD - fix typos

See merge request gitlab-org/gitlab-ce!25917

Skip gitlab:ui:visual job for docs again

See merge request gitlab-org/gitlab-ce!25922

Revert "Merge branch 'remove-select2-rails' into 'master'"

See merge request gitlab-org/gitlab-ce!25920

Fix gl-loading-icon bug before gitlab-ui update

See merge request gitlab-org/gitlab-ce!25683

This reverts merge request !17871

Fixed sticky bar styling in Safari

Closes #58625

See merge request gitlab-org/gitlab-ce!25913

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/58625

Externalize admin deploy keys strings

See merge request gitlab-org/gitlab-ce!24712

CE FE Refactor dashboard gold trial callouts

See merge request gitlab-org/gitlab-ce!25483

Disallow reopening of locked merge request

Closes #56864

See merge request gitlab-org/gitlab-ce!24882

Fixes #56864

Remove unnecessary license check in operations controller

See merge request gitlab-org/gitlab-ce!25728

Resolve "Project template for Android"

Closes #58649

See merge request gitlab-org/gitlab-ce!25870

Skip visual test in master branch

See merge request gitlab-org/gitlab-ce!25907

remove select2-rails (select2 is now installed via yarn)

Closes #36711

See merge request gitlab-org/gitlab-ce!17871

Add support for ingress hostnames

Closes #58244, #56158, and #46691

See merge request gitlab-org/gitlab-ce!25181

Refactor CI/CD landing page from feedback

See merge request gitlab-org/gitlab-ce!25905

Vendored templates for security products EE (follow-up after Dependency Scanning template)

See merge request gitlab-org/gitlab-ce!25888

Update Dependency Scanning and add other templates

Add and restructure external resources and examples

Closes #58041

See merge request gitlab-org/gitlab-ce!25588

Also refactors and combines resources and examples.

Externalizes most strings in the
deploy key settings of the
admin area.

Clarify Rugged direct access only available in GitLab 11.9

See merge request gitlab-org/gitlab-ce!25887

Fixes split button styling in modal footers (CE port)

See merge request gitlab-org/gitlab-ce!25869

Allow skip trigger for gitlab:ui:visual

Closes gitlab-ui#198

See merge request gitlab-org/gitlab-ce!25894

By adding [skip visual] to the commit message the
gitlab:ui:visual test can be skipped.

This is needed to avoid deadlock situations as exhibited in
https://gitlab.com/gitlab-org/gitlab-ui/issues/198

Add missing keywords

Closes #51675

See merge request gitlab-org/gitlab-ce!25444

Also refactors structure of the page
to make the first section more useful.

Provide ee backports related to approver filtering

See merge request gitlab-org/gitlab-ce!25876

Adds custom validator for ArrayNoneAny param
Extracts some logic in js into separate files