13495-a: Create DesignAtVersion model

See merge request gitlab-org/gitlab!21119

Resolve "Routing under `-` causes issues"

See merge request gitlab-org/gitlab!22034

Remove buttons in epic tree have weird focus state

See merge request gitlab-org/gitlab!21785

Reduce CommitIsAncestor RPCs with environments

Closes #29562

See merge request gitlab-org/gitlab!21778

Updates security release issue template

See merge request gitlab-org/gitlab!21571

Related to https://gitlab.com/groups/gitlab-com/gl-infra/-/epics/121

Updates Security Release MR template

See merge request gitlab-org/gitlab!21576

As part of https://gitlab.com/groups/gitlab-com/gl-infra/-/epics/121,
Security Release MR template was updated to not mention dev.gitlab.org,
and point out to GitLab Security (gitlab-org/security/gitlab) instead.

It also re-arranges some steps to make them more clear

Add dashboard activity to events api

See merge request gitlab-org/gitlab!19816

Don't use cached node objects for geo:set_secondary_as_primary task

See merge request gitlab-org/gitlab!22021

Extract list_projects into a separate controller

See merge request gitlab-org/gitlab!21645

Resolve "Move Analytics out of "More" in top navbar"

See merge request gitlab-org/gitlab!21112

This MR also adds a navbar item for analytics which
takes a user to the merged analytics space.

This reverts commit 1578bae2, reversing
changes made to 849b2c77.

This reverts merge request !20455

Some routes can use a shorter version of a helper.
That allows skipping a namespace object.

The two following helpers produce the same result.

```
app.namespace_project_error_tracking_projects_path(
  @project.namespace, @project
)

app.project_error_tracking_projects_path(
  @project
)
```

More info here
https://gitlab.com/gitlab-org/gitlab
/-/blob/v12.5.0-ee/config/application.rb#L279-291

Added Japanese proofreader

See merge request gitlab-org/gitlab!21942

Use ISO time format with 3 fraction digits

See merge request gitlab-org/gitlab!21835

Resolve "Follow-up from "Finalise vue packages list app""

Closes #36652

See merge request gitlab-org/gitlab!21490

- updated snapshots

It can cause some weird behaviour, AR objects are generally
not condsidered to work like that

Enable ESLint rule no-jquery/no-sizzle

See merge request gitlab-org/gitlab!21875

Introduced snippet_title component

See merge request gitlab-org/gitlab!21941

The component is responsible for rendering title, description and
"Edited" information on a snippet view.

Quarantine auto devops e2e test

See merge request gitlab-org/gitlab!21994

Extract Design Management System Note Service

See merge request gitlab-org/gitlab!18162

This adds a new model entity `DesignManagement::DesignAtVersion`, which
wraps a design and an associated version. Mechanisms are provided for
lazy-finding and validation.

These do not have mutable properties, and validate the important
constraint that they share an issue

Finding DesignManagement::DesignAtVersion objects requires querying both
the designs and the versions tables, and is at present more expensive
than a single fetch. It also returns an Array instead of a relation,
since this is not a ActiveModel object. We validate invariants in find,
this ensures we never fetch invalid objects.

* Validations:
  - checking that there is both a design and a version
  - checking that the design and the version have the same issue
  - checking that both the design and the version have an issue

  These validations are checked during `find` and when calling
  `instantiate`

* ID

  It is important for GraphQL and the front-end that the model has an ID
  that can be used to lookup each combination, and be used to store this
  identity on the client.

* deleted? and status methods

  These supplement their analogues in DesignManagement::Design with an
  awareness of the current version. Thus a
  DesignManagement::DesignAtVersion as of a version in which is was
  deleted will respond to `deleted?` appropriately.

  Callers should be be careful to distinguish between `dav.state ==
  :current` and `!dav.deleted?` - as of a version before a design has
  been created it will respond with:
   * `#deleted? == false`
   * `#status == :not_created_yet`
  Reflecting the fact that this is not deleted because it has not been
  created yet.

This requires changes to the design and version factories to be able to
create valid objects with nil issues, a condition that is found when
these objects are being imported.

Also includes more namespacing for better readibility and determinism.

The presence of a diff_refs method on Version allows us to have better
code in Design that does not violate the laws of Demeter so much.

This adds a new scope `by_sha` to DesignManagement::Version, and allows
it to be used in the version finder.

Improve the Tags and Releases documentation (OKR)

See merge request gitlab-org/gitlab!21755

Previous versions, although named `*12_5`, showed UI from 2016.

Allow shas that are nil to compare to nil shas

See merge request gitlab-org/gitlab!21991

Updated link to prod architecture in the docs

See merge request gitlab-org/gitlab!21974

Currently, `/events`returns the activity of an authorized user.

This changes the endpoint to return activity similar to a user's
dashboard on the UI. It returns the activity across the
authenticated user's accessible projects