Fixed the position of loading spinner

Closes #28906

See merge request !9658

Remove side padding from expanded sidebar

See merge request !9634

Hightlight linenumber on page load

Closes #28893

See merge request !9664

Backport EE changes. Service method should be `get` and not `all`

See merge request !9672

Remove bundle-audit ignores that are no longer applicable

See merge request !9671

Add missing association for mock_ci_service

See merge request !9668

Cleaning up navigational order - Project

Closes #26348

See merge request !9272

Show public RSS feeds to anonymous users

Closes #2629

See merge request !9596

API: Use `visibility` as string parameter everywhere

Closes #27501

See merge request !9337

Override the `ApplicationSetting` default visibility_level setters so
they accept strings & integers for the levels.

Removes random border on event items on mobile

See merge request !9654

Use full group name in GFM group reference title

See merge request !9642

Add filter and sorting to dashboard groups page

See merge request !9619

Update Rubyzip to 1.2.1

Closes #28933

See merge request !9660

Add docs on how to install GitLab on GCP

Closes #28868

See merge request !9662

[ci skip]

Remove deprecated build status badge and related services

Closes #14757

See merge request !9620

Don't copy tooltip when copying GFM

Closes #28802

See merge request !9563

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Correct the return code description for 204

See merge request !9648

Signed-off-by: Rémy Coutable <remy@rymai.me>

CORS: Whitelist pagination headers

Closes #28405

See merge request !9651

Remove jQuery UI

Closes #18437

See merge request !9649

Add `visibility` & `visibility=` methods to the
`Gitlab::VisibilityLevel` module so the `visibility_level` can be
get/set with a string value.

And add changelog entry.

Use strings for the ApplicationSetting properties:
 - restricted_visibility_levels
 - default_project_visibility
 - default_snippet_visibility
 - default_group_visibility

Because environments also expose the project, ensure the projects are
exposed as they were before in API v3.

Instead of exposing the VisibilityLevel as Integer, expose it as
String `visibility`.

Fixed the position of the loading spinner in the issue template dropdown
toggle. It was previously just positioned with the content, this now
correctly places it in the same place the chevron down is

Closes #28906

Fix updaing commit status when using optional attributes

Closes #28656 and #25784

See merge request !9618

API issues - support filtering by iids

Closes #28257

See merge request !9541