Add template for Alerts Service

See merge request gitlab-org/gitlab-ee!15733

**Please note:**

- Feature flag (`generic_alert_endpoint`)
- Part of https://gitlab.com/gitlab-org/gitlab-ee/issues/13203

The gross alternative was to add more haml field types, and inject
just a Vue button. As shown in [this mr][1], this is not a good way.

[1]: https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/16029

Allow to load ECDSA certificates for pages domains

See merge request gitlab-org/gitlab-ce!32393

Just replace RSA.new with PKey.read

Fixes locale/gitlab.pot

See merge request gitlab-org/gitlab-ee!16271

Due to a bad merge conflict CE to EE conflict

Fix x-axis burndown chart offset by timezone

Closes #13521

See merge request gitlab-org/gitlab-ee!15690

Make use of timezone-mock to test for US/Pacific time

CE Backport: Fix x-axis burndown chart offset by timezone

See merge request gitlab-org/gitlab-ce!32754

Improve Keyboard shortcut help screen

Closes #65367

See merge request gitlab-org/gitlab-ce!31642

Add missing shortcuts, remove shortcuts that don't exist,
and reorder as needed

EE Port: Improve Keyboard shortcut help screen

See merge request gitlab-org/gitlab-ee!15102

Add missing shortcuts, remove shortcuts that don't exist,
and reorder as needed

Add asterisk to name field in new feature flag form

Closes #14800

See merge request gitlab-org/gitlab-ee!16248

Fix order-dependent spec failures with reCAPTCHA

Closes #67133

See merge request gitlab-org/gitlab-ce!32771

spec/controllers/registrations_controller_spec.rb polluted the test
environment by changing the Recaptcha configuration. We now stub the
controller's `verify_recaptcha` method instead of doing that.

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/67133

Update rouge to v3.10.0

See merge request gitlab-org/gitlab-ce!32745

Add note about permissions in Doc MR template

See merge request gitlab-org/gitlab-ce!32755

Docs: Fix typo in "Description templates"

See merge request gitlab-org/gitlab-ce!32757

Update view for testability

See merge request gitlab-org/gitlab-ce!32644

End-to-end test for multiple issue boards on group level

Closes gitlab-org/quality/testcases#225

See merge request gitlab-org/gitlab-ee!16068

Back porting changes to trigger user create event on Trial sign up

See merge request gitlab-org/gitlab-ce!32676

Trigger system hook for user create event on Trial sign up

Closes customers-gitlab-com#632

See merge request gitlab-org/gitlab-ee!15908

Update index.md: fixed spelling mistake

See merge request gitlab-org/gitlab-ee!16228

Only show `/copy_metadata` when usable

See merge request gitlab-org/gitlab-ce!31735

Revert schema and add changelog
Add MR to changelog
Move asterisk outside of brackets

accelerate wiki attachments

See merge request gitlab-org/gitlab-ce!32663