The `#as_indexed_json` method is used to convert individual documents to
the JSON that is sent to Elasticsearch during indexing. We need to
preload the data before it gets to this method. We implemented the
`.preload_indexing_data` method in
https://gitlab.com/gitlab-org/gitlab/-/merge_requests/56808 so we just
need to add this to the various classes now. This MR updates it for
`Issue` only.

We also slightly refactor the issue_instance_proxy since it's more
efficient to just use the `user_id` from the `issue_assignees` join
table than to join again to `users` and also since it wasn't possible to
get the preload to work without loading all of `users.*` which would be
wasteful for a wide table and large numbers of records.

Wrap instance sizes in code tags, fix spelling

See merge request gitlab-org/gitlab!57776

On pages that showed raw instance sizes without wrapping them in
code tags, wrap them in code tags. Fix other spelling issues on those
pages.

In one other page, disable spelling on a section including team
member names.

Add reference to installation docs

See merge request gitlab-org/gitlab!57769

As requested, add a cross-link to the Gollum installation docs.

Standardized expiration language

See merge request gitlab-org/gitlab!57064

Related to: https://gitlab.com/gitlab-org/gitlab/-/issues/325346

Validate foreign key on ServiceHooks

See merge request gitlab-org/gitlab!57483

Remove Starter reference in Jira DVCS doc

See merge request gitlab-org/gitlab!57722

Add link to GraphQL example project for API Fuzzing

See merge request gitlab-org/gitlab!57659

Remove `optimize_deploy_keys_presenter` feature flag [RUN ALL RSPEC] [RUN AS-IF-FOSS]

See merge request gitlab-org/gitlab!57551

Move project hooks routes under /-/ scope [RUN ALL RSPEC]

See merge request gitlab-org/gitlab!57734

Geo: Add snippet repository verification [RUN ALL RSPEC] [RUN AS-IF-FOSS]

See merge request gitlab-org/gitlab!56596

Remove disable_query_limiting in RegistrationsController

See merge request gitlab-org/gitlab!57597

Removes presence validation from cache config

See merge request gitlab-org/gitlab!57405

Add /internal/geo_proxy endpoint [RUN ALL RSPEC] [RUN AS-IF-FOSS]

See merge request gitlab-org/gitlab!56297

Leveraging the work done for Package File Verification. Most of the
changes are to the database schemas, and to specs. Verification is
behind the feature flag "geo_snippet_repository_verification".

In preparation for adding verification to another replicator.

The negative test was improperly passing, because model_record didn't
exist.

In preparation for mutable replicables, especially Git repos.

Remove a warning about naming convention when publishing

See merge request gitlab-org/gitlab!57716

Merge branch '326212-controller-projects-hookscontroller-index-executes-more-than-100-sql-queries' into 'master'

Avoid N+1 queries in breadcrumbs

See merge request gitlab-org/gitlab!57725

Support automatic transitions of Jira issues, and disabling transitions

See merge request gitlab-org/gitlab!55773

Add a new setting to the Jira integration to attempt an "automatic"
transition of Jira issues, by checking the available workflow
transitions on the issue and using the first one with a status
category of "Done".

Automatic transitions are enabled by setting the new DB column
`jira_issue_transition_automatic` to true, which takes precedence over
the existing `jira_issue_transition_id` column.

To make this behaviour opt-in, we also introduce an explicit checkbox
to enable issue transitions. The state of this checkbox is handled
entirely on the frontend, based on the values in
`jira_issue_transition_id` and `jira_issue_transition_automatic`.

Cache merge requests count in group sidebar [RUN ALL RSPEC] [RUN AS-IF-FOSS]

See merge request gitlab-org/gitlab!55971

Merge branch '323845-refactor-registrations-controllers-to-use-onboarding-feature-category' into 'master'

Refactor Registrations controllers to use onboarding feature category

See merge request gitlab-org/gitlab!57154

Adds an overview stage to VSA

See merge request gitlab-org/gitlab!56621

Adds a manually configured overview stage, this
stage will display the metrics and charts, while
the other stages will show relevant stage data

Fix "Create new merge request" permissions in docs

See merge request gitlab-org/gitlab!57432

Remove mention to signed container registry images

See merge request gitlab-org/gitlab!57678

Introduce a rubocop check for license available usage

See merge request gitlab-org/gitlab!53278

Merge branch 'kassio/bulkimports-skip-epics-subrelations-pipelines-when-group-has-no-epics' into 'master'

BulkImports: Remove code duplication on Epic dependent pipelines

See merge request gitlab-org/gitlab!57402

Remove Starter references in FF version lists

See merge request gitlab-org/gitlab!57721

Update version section for page for consistency

See merge request gitlab-org/gitlab!57733

Improve error handling of runner instructions

See merge request gitlab-org/gitlab!57588

Fix MR widget alignment

See merge request gitlab-org/gitlab!56768

Added my-reaction-emoji to boards filtering

See merge request gitlab-org/gitlab!57547