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

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

Removes EE differences for panels.scss

Closes gitlab-ee#10604

See merge request gitlab-org/gitlab-ce!26492

GitHub importer: Use the project creator to create branches from forks

Closes #59396

See merge request gitlab-org/gitlab-ce!26510

fix(ui-bug): missing border of comments

Closes #58915 and #58538

See merge request gitlab-org/gitlab-ce!26242

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

Revert "Merge branch 'renovate/gitlab-ui-2.x' into 'master'" (CE backport)

See merge request gitlab-org/gitlab-ce!26535

This reverts merge request !26380

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

Resolves "Branch name is lost if I change commit mode in Web IDE"

Closes #57984

See merge request gitlab-org/gitlab-ce!26180

- fixed getter spec with correct getter name