Clean up projects API docs

See merge request !2846

EE port of breadcrumbs-improvements

See merge request !2832

Sets the deploy board to be closed by default

Closes #3133

See merge request !2834

Removed some invalid translations

See merge request !2842

Document how to extend EE methods with template method pattern

See merge request !2835

fixed up Ruby based on review

EE port of clean-up-new-nav-templates

See merge request !2818

Resolve "Promote webhooks"

Closes #2947

See merge request !2802

Extract methods to EE::Projects::CreateService

Closes gitlab-ce#37222

See merge request !2831

Geo: Gracefully catch incorrect db key on primary

Closes #2869

See merge request !2819

Update translations from crowdin

See merge request !2841

See the discussion over:
https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/2248#note_39246388

Make search dropdowns consistent

See merge request !2804

Make .ajax-users-select dropdown consistent

See merge request !2829

Removes the gap in approvers in the MR widget

Closes #3329

See merge request !2825

Make role dropdown on group admin area consistent

See merge request !2830

EE - Remove project select dropdown from breadcrumb

See merge request !2826

Deprecate Koding in docs

See merge request !2812

Fix a regression breaking projects with an empty import URL

Closes #3288

See merge request !2824

Fix a 500 error in the SSH host keys lookup action

Closes #3312

See merge request !2827

CE upstream: Friday

Closes gitaly#184, gitaly#219, #3298, gitaly#486, gitlab-ce#37194, and gitlab-ce#34864

See merge request !2806

Port "Protected runner executes jobs on protected branch [Solution 1]" to EE

See merge request !2820