EE Port of Run pipeline button for "Pipelines for merge requests

See merge request gitlab-org/gitlab-ee!16378

In the Merge Request view, under pipelines tab
the user can see a run pipeline button

Adds axios post request to button click

Adds the logic to handle the user click,
refresh the table and disable the button while thee
request is being made

Updates UI for desktop and mobile

Adds specs
Regenerates potfile

Follow-up after review

Uses .finally to avoid code repetition

Fix wrong tier error message for Operations dashboard

See merge request gitlab-org/gitlab-ee!16319

The operations dashboard feature was brought from Ultimate to Premium
in GitLab 11.10
https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/10586.

This renames some missing items from Gold to Silver.

Optimize /admin/applications so that it does not timeout

Closes #67228

See merge request gitlab-org/gitlab-ce!32852

[Backend]  API for Step 2 of Trial

See merge request gitlab-org/gitlab-ee!15490

We need to create Leads when customers are requesting a trial for
GL.com. In order to do it we're going to use a service that will call a
custom endpoint on the subscription portal.

Add additional dirs to QA image Dockerignore

See merge request gitlab-org/gitlab-ce!32900

Optimize queries for snippet listings

See merge request gitlab-org/gitlab-ce!32576

Add instructions for defining stages

See merge request gitlab-org/gitlab-ce!32896

Geo: Docker Registry replication documentation (4/4)

Closes gitlab-ee#2870

See merge request gitlab-org/gitlab-ce!31196

Add the Upgrade button to the User Billings page

Closes customers-gitlab-com#518

See merge request gitlab-org/gitlab-ee!15075

Geo: Refactor file replication

See merge request gitlab-org/gitlab-ee!16382

Add view tests for project sidebar - security & compliance

See merge request gitlab-org/gitlab-ee!16357

Fix graphql-explorer CSP violation

See merge request gitlab-org/gitlab-ce!32882

Backporting https://github.com/rmosolgo/graphiql-rails/pull/71

Set max-age and secure flag for pages auth cookies

See merge request gitlab/gitlab-ee!1231

Do not create projects from group template if project is not descendant of that group

See merge request gitlab/gitlab-ee!1262

Set max-age and secure flag for pages auth cookies

See merge request gitlab/gitlabhq!3378

Resolve "Forks count do not match after searching"

Closes #66023

See merge request gitlab-org/gitlab-ce!31930

Fix markdown to improve rendering of markdown doc

Closes #65090

See merge request gitlab-org/gitlab-ce!32744

Backport for EE 15582

See merge request gitlab-org/gitlab-ce!32814

This is a back-port for all CE related files.

Test case implementation for 'File Locking'

Closes gitlab-org/quality/testcases#88 and #13688

See merge request gitlab-org/gitlab-ee!15582