Support installing Group runner on group-level cluster

Closes #51988

See merge request gitlab-org/gitlab-ce!26260

A runner installed on a cluster will now use the
cluster's `cluster_type` as its `runner_type`.

Expand resolved discussion when linking to a comment in the discussion

Closes #59352

See merge request gitlab-org/gitlab-ce!26483

Enrich commits with full data in CommitCollection

Closes #58805

See merge request gitlab-org/gitlab-ce!26445

Fix url property format in urls.yml file

See merge request gitlab-org/gitlab-ce!26484

Clear pipeline status cache after destruction of pipeline

Closes #59453

See merge request gitlab-org/gitlab-ce!26575

Resolve "Extended tooltip for merge request links"

Closes #54916

See merge request gitlab-org/gitlab-ce!25221

Replace environments dropdown with gitlab ui dropdown

See merge request gitlab-org/gitlab-ce!26386

Removes EE differences for milestone.scss

See merge request gitlab-org/gitlab-ce!26558

Stylelints for duplicate selectors and using BS4 classes

See merge request gitlab-org/gitlab-ce!26409

DRYed the code

Changed new rules to warnings

Manual prettified and added stylelint rules

`project.pipeline_status.has_status?` is cached, which can lead to Error
500s in the UI if the this condition is used to check whether a pipeline
exists for a commit. We now expire the cache to ensure that the
information is consistent.

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/59453

Docs: Improve add existing cluster section

See merge request gitlab-org/gitlab-ce!26266

We are mentioning the commands needed to obtain these fields twice.
Merge them into the single place.

- For API URL we only had the command at the bottom so move this up.
- For CA certificate, we already have the command at the top of the
section
- For Token, we already have an similar command at the top of the
section

Also update arrivalRate to a max of 100

Makes discussion expansion depend on `discussion.expanded`

Update spinners in group list component

Closes #52366

See merge request gitlab-org/gitlab-ce!26572

Update frontend-specific files in reviewer roulette

See merge request gitlab-org/gitlab-ce!26566

Unify behaviour of 'Copy commit SHA to clipboard' on job view

Closes #58343

See merge request gitlab-org/gitlab-ce!25829

[ci skip]

Refactor create merge request test suite

See merge request gitlab-org/gitlab-ce!26499

Also, make both `it` statments part of the same `describe`.

Finally, remove duplication of strings by defining variables and
re-using them.

Add ssot link to security reviews documentation

See merge request gitlab-org/gitlab-ce!26291

Backport 'Update user name upon LDAP sync' from EE

See merge request gitlab-org/gitlab-ce!26432

(CE port) Replace GlSearchBox with GlSearchBoxByType

Closes gitlab-ee#10637

See merge request gitlab-org/gitlab-ce!26548

Improvements for Knative installation

Closes #56954

See merge request gitlab-org/gitlab-ce!26339

Displays Knative domain field automatically after Helm is successfully
installed.

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/56954

Resolve CE/EE differences in MergeRequestPresenter spec

See merge request gitlab-org/gitlab-ce!26546

Mark .eslintrc.yml as frontend change for Danger

See merge request gitlab-org/gitlab-ce!26549

Removes EE differences for settings.scss

Closes gitlab-ee#10641

See merge request gitlab-org/gitlab-ce!26543

Removes EE differences for groups.scss

Closes gitlab-ee#10642

See merge request gitlab-org/gitlab-ce!26544

Mention review-qa-all in the end-to-end tests documentation

See merge request gitlab-org/gitlab-ce!26541

Removes EE differences for secondary_navigation_elements

Closes gitlab-ee#10638

See merge request gitlab-org/gitlab-ce!26537