In order to have each individual error displayed in the dashboard, the
error status of the metrics should be stored.

The error store is added to the metrics, so each panel can display it's
own individual error state if needed.

Specifics:

- Add error states as constants
- Add mutations to capture loading and error states in each metric
- Capture each of the conditions that can create a given error
- Add specs for specific error cases
- Add new error cases to be tested under different server responses.
- Refactor to use the testAction util.

Merge branch '11190-show-most-affected-projects-in-group-security-dashboard-accordion' into 'master'

Add accordion component to vue-shared

See merge request gitlab-org/gitlab!21286

This commit adds a reusable accordion as a shared component.

Note: While it tries to keep the component as generic as possible,
it was built with a specific implementation goal.

See this issue for more information:
https://gitlab.com/gitlab-org/gitlab/issues/11190

Update eslint-plugin-import from 2.16.0 to 2.18.2 (/spec/javascripts/[p-r]*)

See merge request gitlab-org/gitlab!21475

Add empty region when group metrics are missing

See merge request gitlab-org/gitlab!20900

The metrics dashboard didn't let users know when data was missing from
a panel. This change is the first step to know why data is missing.

This change makes use of getter to calculate if the a panel group of
the dashboard should be displayed as empty.

Resolve "Cleanup cycle analytics mapped imports"

Closes #37281

See merge request gitlab-org/gitlab!21113

Update help link in MR widget

See merge request gitlab-org/gitlab!21471

Fix indentation for graphql docs

See merge request gitlab-org/gitlab!21532

remove gitlab-ui from capitalization list

See merge request gitlab-org/gitlab!21535

Add after_script timeout details

See merge request gitlab-org/gitlab!21376

Merge branch '36952-migrate-existing-projects-to-hashed-storage-must-handle-design-repositories' into 'master'

Handle design repositories when moving existing projects to Hashed Storage

Closes #36952

See merge request gitlab-org/gitlab!20540

Update reference to frontend guide in Dangerfile message

See merge request gitlab-org/gitlab!17573

Add caps and backtick testing to docs linting

Closes #31185

See merge request gitlab-org/gitlab!20764

Update capitalizations as needed to enable caps linting

only for CE-specific contents under /spec/javascripts/[p-r]

Fixing kramdown link errors in docs

See merge request gitlab-org/gitlab!21452

Changes are required to clean up Kramdown warnings that occur when
building the doc site.

Fix encoding issue with JSON Cache

See merge request gitlab-org/gitlab!21407

Update caching documentation

Closes #33295

See merge request gitlab-org/gitlab!21165

Fix flaky test in releases_controller_spec.rb

Closes #37372

See merge request gitlab-org/gitlab!21519

Install lsb-release for repo URL construction

Closes #39424

See merge request gitlab-org/gitlab!21510

Add API for states by country

See merge request gitlab-org/gitlab!21417

Add post deployment migration to complete Pages metadata migration

See merge request gitlab-org/gitlab!19928

Multiple release objects would be created in the test with the same tag
(v1.1.0), which caused random failures, depending on what the database
returned for Releases.find_by_tag!. Since there is no uniqueness
constraint, we fix this problem by changing the tag to a unique name.

Closes https://gitlab.com/gitlab-org/gitlab/issues/37372

Unquarantine Secure Licence Compliance MR test

Closes #36696

See merge request gitlab-org/gitlab!20744

Backend: Add ability to embed stack trace in gitlab issue

See merge request gitlab-org/gitlab!20799

Add table to store the sentry event and issue ids
that are related to a gitlab issue

Update issue links and add metadata in quarantined tests

See merge request gitlab-org/gitlab!21472

Add border top to Readme file header

Closes #27025

See merge request gitlab-org/gitlab!21314

Fix bug with snippet refactored routes

See merge request gitlab-org/gitlab!21267