OKR: Improve the Markdown page (part 1)

Closes #20612, #24731, and gitlab-docs#652

See merge request gitlab-org/gitlab!26663

- Add docs on the Wiki TOC
- Enhance inline diff section
- Make headings sentence case
- Markdown page Vale style fixes
- Update TOC image name
- Add example to footnote bug
- Write emoji as lowercase

Resolve "CODEOWNERS should enforce reviews for renaming of files"

Closes #198061

See merge request gitlab-org/gitlab!26513

Refactor AuditLogFinder public interface

See merge request gitlab-org/gitlab!27209

This concern should belong to the model. It is also consistent with
patterns across other models (e.g. Issues, MergeRequests)

GraphQL: Upgrade to GraphQL-Ruby 1.10

Closes #207278

See merge request gitlab-org/gitlab!26096

Concentrates whitelisted and blacklisted tables

See merge request gitlab-org/gitlab!25624

Fixes typo on security template

See merge request gitlab-org/gitlab!27516

Index issues on sent_notifications

See merge request gitlab-org/gitlab!27034

Move feature flag list into process cache

See merge request gitlab-org/gitlab!27511

Convert security dashboard component karma tests to jest

Closes #209127

See merge request gitlab-org/gitlab!27136

Use the legacy `Gemfile`/`Gemfile.lock` names in `tooling/overcommit`

See merge request gitlab-org/gitlab!27495

Corrects typo on the issue security template

Improve usage data tests

See merge request gitlab-org/gitlab!27420

- no need to create all of those db records, improve
  speed by 3 seconds

Fix for empty keys on Redis#del

See merge request gitlab-org/gitlab!27507

Navigating GitLab via Rails console

See merge request gitlab-org/gitlab!26571

Thanks @dstanley!

Migrate to @gitlab/eslint-plugin

See merge request gitlab-org/gitlab!27415

- Fix how we call include_graphql_fields
from described_class.new to described_class
- Fix require_graphql_authorizations matcher
- Update have_graphql_type and have_graphql_resolver
- Fix how we call require_graphql_authorizations
from described_class.new to described_class
- Fix how we call have_graphql_fields
from described_class.new to described_class
- Fix how we call have_graphql_field
from described_class.new to described_class
- Add `field_with_params` graphql helper
- Fix how `field_type` determines type
- Use `resolve_field` instead of `resolve`
so that `extras` metadata is properly processed
- Fix returned error message check

Remove Consul from Praefect diagram

See merge request gitlab-org/gitlab!27472

Enable bulk-inserts by default

See merge request gitlab-org/gitlab!27487

Change test quarantine type to bug

See merge request gitlab-org/gitlab!27486

[Part-1] Adds Requirements page tabs and app root

Closes #207981

See merge request gitlab-org/gitlab!27498

Migrate ee/notes to Jest

Closes #194297

See merge request gitlab-org/gitlab!27317

Send active users in seat link

See merge request gitlab-org/gitlab!27481

When we switched from a single-threaded application server (Unicorn) to
a multithreaded one (Puma), we did not realize that Puma often reaps
threads after a request is done and recreates them later. This makes the
thread-local cache ineffective, as the cache does not store anything
beyond the lifetime of the thread.

Since `ActiveSupport::Cache::MemoryStore` is thread-safe, we should be
able to switch the L1 cache for the feature flag list to use this to
reduce load on Redis.

Since read and write access is synchronized, this does have the side
effect of adding contention when feature flags are accessed.

We made a similar change in
https://gitlab.com/gitlab-org/gitlab/-/merge_requests/26935, and this
seems to be working fine.

Discovered in
https://gitlab.com/gitlab-com/gl-infra/infrastructure/-/issues/9414

Remove database hits from Issue#moved? tests

See merge request gitlab-org/gitlab!27213

Enable Zeitwerk auto-loader

Closes #197345

See merge request gitlab-org/gitlab!20521

Move Issue#order_created_at_desc from EE to CE

Closes #210526

See merge request gitlab-org/gitlab!27325

Expose smaller Design Management design images in GraphQL

See merge request gitlab-org/gitlab!26947

Optimize AlertsService batch query

See merge request gitlab-org/gitlab!26982

Move "follow-up issue" below "getting majority"

See merge request gitlab-org/gitlab!27504

Convert audit logs date range field to use GitLab UI

See merge request gitlab-org/gitlab!26911

Updated the HAML file to reference the new app rather than the generic
event_filters HAML template.

A future MR will generalise this work into the shared templates