Optimize /api/v4/projects endpoint for visibility level

See merge request gitlab-org/gitlab-ce!26481

Unquarantine previously failing auto devops test

See merge request gitlab-org/gitlab-ce!26641

The smoke test for AutoDevOps was previously failing.
This test is now passing and ready to be unquarantined

Removes extra space in CE

Closes gitlab-ee#10710

See merge request gitlab-org/gitlab-ce!26649

EE: Removes EE differences for issuable.scss

Closes #6658

See merge request gitlab-org/gitlab-ee!10423

Removes EE differences for issuable.scss

See merge request gitlab-org/gitlab-ce!26588

If the requested visibility levels contains only public and/or internal,
omitting private, then we can skip the EXISTS query to search for
private projects for the user.

Previously when a user requested a list of projects,
`Project#public_or_visible_to_user` would search all authorized projects
and public/internal projects as well. However, when a user requests a
specific `visibility_level` (e.g. private), that should reduce the
search space, and we shouldn't need to load public/internal projects.

Improves https://gitlab.com/gitlab-org/gitlab-ce/issues/59329

Copy missing test in date_picker_spec.js from CE

Closes #6554

See merge request gitlab-org/gitlab-ee!10429

Fixes link in artifacts breadcrumb

Closes #59502

See merge request gitlab-org/gitlab-ce!26592

The link to the job page was not set properly,
with this commit it links to the correct job page.

Copy missing test in assignees_spec.js from EE

Closes gitlab-ee#6641

See merge request gitlab-org/gitlab-ce!26618

Remove expand diff to full file feature flag

See merge request gitlab-org/gitlab-ce!26614

Resolve "Get milestone by title via API"

Closes #59296

See merge request gitlab-org/gitlab-ce!26573

Removes EE differences for framework.scss

Closes gitlab-ee#10677

See merge request gitlab-org/gitlab-ce!26590

EE: Removes EE differences for framework.scss

See merge request gitlab-org/gitlab-ee!10432

Provide custom Jest environment with mocked console

Closes #58203

See merge request gitlab-org/gitlab-ce!26577

Provide custom Jest environment with mocked console (EE-port)

Closes gitlab-ce#58203

See merge request gitlab-org/gitlab-ee!10360

Removed target=_blank from ancestor link

Closes #10550

See merge request gitlab-org/gitlab-ee!10341

CE: Insights Frontend

See merge request gitlab-org/gitlab-ce!26284

Insights frontend

Closes #9871

See merge request gitlab-org/gitlab-ee!9856

Update aws install doc non ha

See merge request gitlab-org/gitlab-ce!26387

Allow multiple repositories per project

See merge request gitlab-org/gitlab-ce!26539

Allow multiple repositories per project

See merge request gitlab-org/gitlab-ee!10251

Docs: Fix anchor from user/group to user/project

See merge request gitlab-org/gitlab-ce!26637