This commit checks whether the current user is allowed to create a
project prior to rendering the button.
It also return a `404` error for the Project#new method when the current
user is not allowed to create a new project.

Closes https://gitlab.com/gitlab-org/gitlab/-/issues/333450

Changelog: fixed

Fixes diff line content getting cached on the frontend

See merge request gitlab-org/gitlab!67402

Add selector usage cop for QA and non-QA tests [RUN AS-IF-FOSS]

See merge request gitlab-org/gitlab!64151

Categorize Vale rules files for Dangerbot

See merge request gitlab-org/gitlab!67385

Clarify that reference-style links aren't ok

See merge request gitlab-org/gitlab!67422

[CI Minutes] Link to new CI Minutes purchase route

See merge request gitlab-org/gitlab!67017

Move pipeline process limit check to a dedicated method

See merge request gitlab-org/gitlab!67080

Add dropdown to select visibility of container registry feature

See merge request gitlab-org/gitlab!55079

Fix some button border colors in dark mode

See merge request gitlab-org/gitlab!67389

Fix URI on PyPI install URL

See merge request gitlab-org/gitlab!67403

Blob refactor: Add lock mutation to frontend

See merge request gitlab-org/gitlab!67329

Reduce Markdown cache updates during rolling deploy

See merge request gitlab-org/gitlab!67239

Fix small typo in method documentation

See merge request gitlab-org/gitlab!67154

Expose iid in the pipelines entity

See merge request gitlab-org/gitlab!67365

Fix empty recursive query for base_and_ancestors

See merge request gitlab-org/gitlab!67182

Add a select dropdown under
`Settings > General > Visibility, project features, permissions` that
allows project admins to change the visibility of the container
registry.

The container registry visibility can now be set independently of the
project visibility.

Changelog: changed

Changelog: changed

Added lock mutation to the frontend

Sync feature category mappings

See merge request gitlab-org/gitlab!67311

Skip hooks when pushing security branches with secpick

See merge request gitlab-org/gitlab!64769

While we had the facts right here, we need to say the phrase
"reference-style" to help users understand this type of link is not
okay.

Document the actual behavior of remote push mirroring

See merge request gitlab-org/gitlab!66555

Fix the documentation for creating new commit discussions

See merge request gitlab-org/gitlab!67406

Update codeowner file for Growth docs

See merge request gitlab-org/gitlab!67401

Update GitLab UI/SVG

See merge request gitlab-org/gitlab!67282

This makes sense, because some hooks will fail if the security master
and origin master are very different, but we know (from the generated
command) that the use of push here is safe.

Remove sidebar_refactor ref in startup_css scripts

See merge request gitlab-org/gitlab!67375

Revise admin area Pages settings UI

See merge request gitlab-org/gitlab!66368

Add pages_file_entries to plan_limits

See merge request gitlab-org/gitlab!64925

Docs: Link working example to releases page

See merge request gitlab-org/gitlab!67051

Changelog: other

Mock observers globally in Jest

See merge request gitlab-org/gitlab!67247

Cleanup feature_category for DAST

See merge request gitlab-org/gitlab!66989

Remove unused with_archived_trace scope

See merge request gitlab-org/gitlab!67392

Remove border-white-light - it was only used by
emoji-menu which is now disabled by default.

The previous color was much too light, we can just
use the default border color instead. I'd ideally
like to remove the $border-white-normal variable
from light mode as well but maybe later.

Changelog: fixed