Move lint components to pipeline editor

See merge request gitlab-org/gitlab!48150

This change moves the components and queries related to CI Lint to the
pipeline editor directory, so they become part of the editor codebase.

Why?

The CI lint feature will be moved completly to the pipeline editor
and this is an initial technical iteration to move the files to their
destination.

Remove "code_review_analytics_has_new_search"  feature flag

See merge request gitlab-org/gitlab!47796

feature flag

Fixes the diffs tree list showing incorrectly

See merge request gitlab-org/gitlab!48478

Contrast Gitaly Cluster and Geo

See merge request gitlab-org/gitlab!48215

Create subscription namespace onboarding action

See merge request gitlab-org/gitlab!48497

Replace fa icons in single file diff

See merge request gitlab-org/gitlab!48136

Authorize the project if it's the agent's project

See merge request gitlab-org/gitlab!48314

Replace bootstrap caret-down with chevron-down

See merge request gitlab-org/gitlab!48424

This adds the first action for namespace onboarding, where we record
when a namespace created a new subscription.

Add GraphQL error for test/dev

See merge request gitlab-org/gitlab!48566

Merge branch '288018-rename-cycle-analytics-with-value-stream-analytics-in-strings-under-ee-spec' into 'master'

Rename "Cycle Analytics" with "Value Stream Analytics" under /ee/spec

See merge request gitlab-org/gitlab!48550

Add email column to "Seats in use" table

See merge request gitlab-org/gitlab!47432

 - add data
 - add styles

Remove GlIcon aria-hidden code

See merge request gitlab-org/gitlab!48623

Stop spring before resetting DB in scripts/regenerate-schema

See merge request gitlab-org/gitlab!48645

Allow saving deprecated `import_sources`

See merge request gitlab-org/gitlab!48644

docs: Ruby and Git versions are irrelevant for Omnibus

See merge request gitlab-org/gitlab!48620

Remove use of phrase active users

See merge request gitlab-org/gitlab!48639

Docs: Add an Python example for test coverage visualization

See merge request gitlab-org/gitlab!48486

Coverage is stored in .coverage and we don't need an intermediate file for this

Add Vale test for the phrase "active users" and prompt its replacement

See merge request gitlab-org/gitlab!48584

Update details about stages and needs

See merge request gitlab-org/gitlab!48578

Expose public email for users in GraphQL

See merge request gitlab-org/gitlab!48468

Set Retry-After header when RackAttack throttling

See merge request gitlab-org/gitlab!48310

Cascade delete inheriting services

See merge request gitlab-org/gitlab!48163

Add 'with runner' context to pipeline data_builder

See merge request gitlab-org/gitlab!48393