Docs: Polish "Pages on separate server" setup

Closes gitlab-com/support/support-team-meta#2469

See merge request gitlab-org/gitlab!36282

https://gitlab.com/gitlab-org/gitlab/-/blob/25ad8786b887368f11d3fee97b7724f0195c2254/doc/development/documentation/styleguide.md#placeholder-text

Make note about trigger hover behavior

See merge request gitlab-org/gitlab!37176

Use native Gitaly pagination for Branch list API

See merge request gitlab-org/gitlab!35819

Pagination by Kaminari is slow because it requests all branches and
paginate after receiving results from Gitaly. It's a first iteration to
implement native pagination with Gitaly.

Replace prepend-left-10 class

See merge request gitlab-org/gitlab!36610

Expired subscriptions have 30 day grace period

See merge request gitlab-org/gitlab!35897

Add controller and views for manage organization's Runners on group level

See merge request gitlab-org/gitlab!33074

Create DastSiteProfile from GraphQL mutation

See merge request gitlab-org/gitlab!36792

Hooks models into services to create records in the db.

Provide users who have expired subscriptions a grace period
to renew their subscriptions before we begin downgrading them.

part of: https://gitlab.com/gitlab-org/growth/product/-/issues/1513

[RUN AS-IF-FOSS] Move approvals components to FOSS

See merge request gitlab-org/gitlab!36449

Add Jsonnet template for Dynamic Child Pipelines

Closes #229113

See merge request gitlab-org/gitlab!37058

Remove unindexed condition on label transfer

See merge request gitlab-org/gitlab!37060

Un-quarantine import project using instance template spec

See merge request gitlab-org/gitlab!36707

Fix gitaly setup running always for specs setup

Closes #229736

See merge request gitlab-org/gitlab!37163

Docs haml lint CI job

Closes #208354

See merge request gitlab-org/gitlab!36945

Add a pipeline job to test UI links to docs,
as links break when docs move, especially anchors
when headings change.

Add "New epic" button within epic page

See merge request gitlab-org/gitlab!34109

Update Jira integration images

See merge request gitlab-org/gitlab!37165

Update service desk documentation

See merge request gitlab-org/gitlab!37116

Update service desk docs after it got moved to core tier.

Since we switched to shas in GITALY_SERVER_VERSION, it no longer matches
the VERSION in gitaly. As we cannot update VERSION as that is in another
project, we match GITALY_SERVER_VERSION against checked out git sha
instead, in order to determine if we need to run gitaly setup again

Move codeclimate functions out of ee directory

See merge request gitlab-org/gitlab!36114

Move package APIS to core [RUN AS-IF-FOSS]

Closes #213929

See merge request gitlab-org/gitlab!35919

- Remove unnecessary images
- Change headings to infinitive instead of gerund forms
- Change "After creating the epic" into "Edit an epic"

Related issue:
https://gitlab.com/gitlab-org/gitlab-ui/-/issues/871

This also covers the actual epic creation form
elements and available options.

Also some refactoring on the test and selectors

This also replaces <gl-deprecated-button> with <gl-button>