Replace fa-search with GitLab SVG search icon

See merge request gitlab-org/gitlab!43110

- Replace in HAML and Vue files
- Update selectors in specs
- Remove icon definitions in fontawesome_custom.scss
- Add changelog

Merge branch '219840-replace-gl-deprecated-button-with-gl-button-in-ee-app-assets-javascripts-vue_shared' into 'master'

Replace deprecated button

See merge request gitlab-org/gitlab!42065

Changes to SCIM identity documentation

See merge request gitlab-org/gitlab!44493

* 20:1 Currently removed as flagged by Vale linter
* 54:165 will match changed to matches
* 66:38 will set changed to gets
* 78:25 will uniquely identify changed to uniquely identifies
* 81:142 will likely cause changed to may cause
* 113:42 will only sync changed to only syncs
* 114:56 it will sync changed to it syncs
* 116:58 will appear changed to appears
* 120:1 sentence shortened by splitting into two sentences.
* 120:71 will likely changed to may

Separate issues list scss for EE

See merge request gitlab-org/gitlab!44551

Merge branch '235391-support-group-milestones-to-be-associated-with-project-releases-in-api-3' into 'master'

Group Milestones to be associated with Project Releases in API documentation

See merge request gitlab-org/gitlab!44395

Documenting cluster cost management

See merge request gitlab-org/gitlab!43721

and fixed a typo

Clarify which file the Scalability team maintains

See merge request gitlab-org/gitlab!44555

Fix UnresolvedValueError in instance statistics

See merge request gitlab-org/gitlab!44475

Apply GitLab UI button styles to buttons in app/views/shared/wikis directory

See merge request gitlab-org/gitlab!44338

Apply GitLab UI button styles to buttons in app/views/projects/commits directory

See merge request gitlab-org/gitlab!44331

Use optimistic locking to safely migrate a build trace chunk

See merge request gitlab-org/gitlab!44588

Migrate trigger block button on the jobs log page

See merge request gitlab-org/gitlab!44466

Remove index on issues.relative_position

See merge request gitlab-org/gitlab!43991

This index is only on a single column, `relative_position`. However,
when we query issues by anything other than ID, we pretty much always do
that with a filter on `project_id`. (The exception is an admin user
viewing a dashboard, which is a rare case, and there aren't
instance-level boards anyway.)

We already have an index that's perfect for filtering by `project_id`
and ordering by `relative_position`, because it's on these columns:

    (project_id, relative_position, state_id, id DESC)

But sometimes the planner won't use it because of this index, which can
lead to poor query performance.

Fix typo in SecurityApprovals

See merge request gitlab-org/gitlab!44538

Remove beta check for project subscriptions

See merge request gitlab-org/gitlab!44601

Add ComposableHash to DRY entry `compose!`

See merge request gitlab-org/gitlab!44173

Part of https://gitlab.com/gitlab-org/gitlab/-/issues/235391

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/43395

This adds a status label to http_requests_total

See merge request gitlab-org/gitlab!44468

Remove store_instance_statistics_measurements FF

See merge request gitlab-org/gitlab!44566

Add Kerberos LDAP mapping documentation

See merge request gitlab-org/gitlab!43922

Icons and tooltips for enabled/disabled status in integrations list

See merge request gitlab-org/gitlab!44318

Docs: Prefer short log tail over large GitLabSOS

See merge request gitlab-org/gitlab!44018

Update docs to reflect redirects being enabled by default

See merge request gitlab-org/gitlab!44544

Docs: copy edit "add new file" doc

See merge request gitlab-org/gitlab!44568

Disable "Clone repository" link for group wikis

See merge request gitlab-org/gitlab!44564

Changed or removed the word "currently" flagged by Vale in Epics

See merge request gitlab-org/gitlab!44407

Allow unauthenticated public project snippet API access

See merge request gitlab-org/gitlab!44446

Update predicate to check read_licenses claim

See merge request gitlab-org/gitlab!44464

Add troubleshooting for `no matches for kind "Deployment" in version "extensions/v1beta1"`

See merge request gitlab-org/gitlab!44264