Make sure docs jobs run for lint-doc updates

See merge request gitlab-org/gitlab!53010

Adds a video walk-through

See merge request gitlab-org/gitlab!53032

Update GL version for "mark file as viewed"

See merge request gitlab-org/gitlab!52898

Replace alert classes on div with GlAlert

See merge request gitlab-org/gitlab!52810

Fix formatting in SAML docs

See merge request gitlab-org/gitlab!52979

Add TF_ROOT description to the docs

See merge request gitlab-org/gitlab!53025

Update link to group-level VSA

See merge request gitlab-org/gitlab!52964

Expose cleanup policies limits and document them

See merge request gitlab-org/gitlab!50858

Document them properly so that interested self managed
users can try them

Merge branch '229679-migrate-data-toggle-modal-to-glmodal-for-revert-cherry-picking-commits-3' into 'master'

[MR Page] Migrate to GlModal for revert MR

See merge request gitlab-org/gitlab!52019

Fixes GraphQl merge request types commits count

See merge request gitlab-org/gitlab!52218

Geo: Remove wrong tier from a doc heading

See merge request gitlab-org/gitlab!52925

Remove wait_for_loading duplicate method

See merge request gitlab-org/gitlab!52986

Sort imports by groups in CE specs

See merge request gitlab-org/gitlab!52976

Sort JS imports in the EE specs

See merge request gitlab-org/gitlab!52978

Change color pickers set-color prop to value so it links better with Vue and input standards

See merge request gitlab-org/gitlab!53020

Packages to use composition, not inheritance [RUN AS-IF-FOSS]

See merge request gitlab-org/gitlab!52131

Fix styleguide links

See merge request gitlab-org/gitlab!52928

Reference the add new component docs in more places

See merge request gitlab-org/gitlab!52934

In order to try and improve its exposure

Change the message to be more
friendly to a user.

Fix tier badge code

See merge request gitlab-org/gitlab!52963

Add 404 state to container registry details page

See merge request gitlab-org/gitlab!52466

- rename
- add image related messages
- tests

Merge branch '300557-follow-up-from-add-click-tracking-to-in-product-marketing-email-campaigns' into 'master'

Resolve "Follow-up from "Add click tracking to in product marketing email campaigns""

See merge request gitlab-org/gitlab!53029

- follow pajamas design setup.

Sort imports orders by groups

See merge request gitlab-org/gitlab!47612

Sort JavaScript imports in the CE code
to match our future ESLint configuration.

GraphQL does not have inheritance, so it is an anti-pattern to use
it to model polymorphism in our models.

The correct approach is to model polymorphism as implementation of
interfaces. Here there is a single `PackageType` interface, and
then different implementations of that.

Since the package types only differ in their metadata, we move the
polymorphism down to the metadata fields, which an empty interface,
implemented by metadata types.

One thing that had to change was the `Query.package` field,
which was previously `Query.package_composer_details`. This must change
since the implementation of the lookup does not perform any type
checking, and thus we cannot type the return value as a composer
package. This would be an illegal and ill-typed down-cast. A good
analogy for this is having a Java collection of

```java
// yes, Cucumbers are fruits - look it up
List<Fruit> bowl = List.of(new Apple(), new Banana(), new Cucumber())
```

And then expecting to get an apple without a cast:

```java
Apple fruit = bowl.get(0) // bad
```

This code would fail to compile in Java, and it is equally illegal
in GraphQL, without the appropriate casting.

We mark the composer metadata type as an orphan since it is only refered
to as an implementation of the broader metadata type.

We also split the type of packages into a top-level one, which is able
to refer to versions, and a leaf node which may not. This prevents
unbounded mutual cyclic recursion.

Return successfully for all packages

We can gradually add more specific package types, but it is important
to always succeed with the data we can return.

Fix border bottom color collapsed replies

See merge request gitlab-org/gitlab!51871

Merge branch '299462-create-issue-from-vulnerability-details-edited-text-is-discarded' into 'master'

Do not overwrite fields that are populated

See merge request gitlab-org/gitlab!52376