Fixed eslint

Changed an isArray check to use -1
Added comment to boards search manager to explain behaviour

This includes elements not being on the page & various store states needing updated

Port of 'remove-iifes-1' to EE

See merge request !1415

Fixed multiple boards new form scrolling

Closes #1897

See merge request !1414

Expose board project and milestone on boards API

Closes #1851

See merge request !1407

When the milestone dropdown is open, it isn't very obvious that you need to scroll.
This fixes that by taking the dropdown out of the other dropdown

Closes #1897

GitLab QA integration tests for EE

See merge request !1399

adds more options to global minimum mirror sync time

Closes #1865

See merge request !1400

Skip "deny_delete_tag" push rule when deleting from web UI

Closes #1889

See merge request !1406

CE upstream

Closes gitlab-ce#25097

See merge request !1412

Execute inflections initializer earlier

See merge request !9871

Fix GitHub Import deleting branches for open PRs from a fork

Closes #29046

See merge request !9758

Execute inflections initializer earlier

Closes #1892

See merge request !1408

Add frequently used emojis back to awards menu -- EE merge edition

See merge request !1403

Add frequently used emojis back to awards menu

See merge request !9843

Only replace non-approval mr-widget-footer on getMergeStatus.

Closes #1866

See merge request !1393

Makes sure that we set the acronyms before the metrics initializer
runs. Otherwise,  `camelize` will not consider these acronyms.

Fix notes polling failing after code changes

Closes #29327

See merge request !9862

CE upstream: Thursday

Closes gitlab-ce#29192, #1381, and gitlab-com/infrastructure#1139

See merge request !1398