We already have most of the information we want to display in
Elasticsearch results inside ES itself, so instead of finding (and
returning!) the full ES object and only using the ID to get the database
object, we instead use a Lite object that quacks like the original
and uses the info from Elasticsearch.

We do this for:
- Projects
- Issues
- Merge Requests
- Milestones

Avoid calling Elasticsearch results twice

See merge request gitlab-org/gitlab-ee!13120

Memoize the ES search results so we don't have to reach out to ES all
over again just to get counts.

Expose merge train information

See merge request gitlab-org/gitlab-ee!12966

(CE Port) New user onboarding (Skeleton)

See merge request gitlab-org/gitlab-ce!28753

- Render EE specific partial if exists

New user onboarding (Skeleton)

See merge request gitlab-org/gitlab-ee!13345

- Add controller
- Add specs
- Mount app
- Add  specs

SSoT - Clean up docs under install/

Closes #61509

See merge request gitlab-org/gitlab-ce!28688

Exposed data will be rendered in merge request widgets

Fix `SyntaxError: Unexpected token` in SAST jobs

See merge request gitlab-org/gitlab-ce!29156

Fix "operation settings external dashboard component" Jest specs

See merge request gitlab-org/gitlab-ce!29160

Port: EE adjust burndown chart opened issues count

See merge request gitlab-org/gitlab-ce!28777

Adjust burndown chart opened issues count & completion rate

Closes #9578

See merge request gitlab-org/gitlab-ee!13406

Jestify some specs that start with "A"

See merge request gitlab-org/gitlab-ce!28727

Visual review toolbar toggle feature-flag default

See merge request gitlab-org/gitlab-ee!13793

Only use elasticsearch when it is enabled

Closes #11795

See merge request gitlab-org/gitlab-ee!13495

Resolve "Charts with many overlapping series display incorrectly"

Closes #61045

See merge request gitlab-org/gitlab-ce!29127

Fix create merge request from vuln modal regression

See merge request gitlab-org/gitlab-ee!13524

Adds ruby and unicorn instrumentation

Closes #61964

See merge request gitlab-org/gitlab-ce!28499

Connect Frontend and backend for external dashboard link

Closes #61453

See merge request gitlab-org/gitlab-ce!28431

Connect frontend UI with backend api for external dashboard link

Bump up @gitlab/eslint-config dependency version to 1.6.0

See merge request gitlab-org/gitlab-ce!29147

The helper was needed because `jest.spyOn` would not
work on this special window object property. The only way
we could successfully spy on `localStorage` was with this helper.

Bump Helm version in Auto-DevOps.gitlab-ci.yml

See merge request gitlab-org/gitlab-ce!28527