Merged DR troubleshooting sections

See merge request gitlab-org/gitlab!42341

We have two troubleshooting sections.
This merges the two.

Fix triggering multiple children pipeline with the same artifact

See merge request gitlab-org/gitlab!40268

When two jobs try to read the same artifact at the same time,
exclusive lock raises error.
With this change, it will retry for 2.5 seconds.

Add CI Pipeline Efficiency documentation

Closes #230611

See merge request gitlab-org/gitlab!40510

Add re-usable Issuable Create app

See merge request gitlab-org/gitlab!42336

Enable store_instance_statistics_measurements FF

See merge request gitlab-org/gitlab!42433

Fix script to fail pipeline early

See merge request gitlab-org/gitlab!42428

Update apollo mutations to be immutable

See merge request gitlab-org/gitlab!42279

Remove custom alert table formatting

See merge request gitlab-org/gitlab!42201

Use redis_usage_data on Redis HLL counters

Closes #249521

See merge request gitlab-org/gitlab!42319

Swimlanes - Fix GraphQL import for drag & drop

See merge request gitlab-org/gitlab!42419

This change enables `store_instance_statistics_measurements` feature
flag by default.

Make merge-ref diffs the default comparison mode

Closes #198458

See merge request gitlab-org/gitlab!34472

Adds `issuable_create` Vue app in FOSS to use with
Test Cases (and other Issuable types later).

Use batch sum counter to sum Jira imported issues

See merge request gitlab-org/gitlab!40654

Replacing shared tooltip on confidential sidebar component

Closes #229013

See merge request gitlab-org/gitlab!42098

Add elasticsearch to rspec fail-fast

See merge request gitlab-org/gitlab!42425

Update template warning padding

See merge request gitlab-org/gitlab!42154

Add . to end of auto-generated GraphQL docs

See merge request gitlab-org/gitlab!42172

Enable recent items search by default removing FF

Closes #244277

See merge request gitlab-org/gitlab!42302

This removes the `recent_items_search` feature flag which has been
enabled on GitLab.com for everyone already which will make it enabled by
default for self managed customers as well now.

- Check for "null" value in `get_job_id`

Remove js-* classes in test_reports.vue

See merge request gitlab-org/gitlab!42073

Fixes drag and drop issue between lists

[BE] WebIDE: Custom schema validation [RUN AS-IF-FOSS]

Closes #232761

See merge request gitlab-org/gitlab!40496

Add freeze and validation

Add getIdFromGraphQLId to FE GraphQL docs

See merge request gitlab-org/gitlab!42408

https://gitlab.com/gitlab-org/gitlab/-/merge_requests/42408#note_413308553

Fix date-dependent snapshot test with useFakeDate

See merge request gitlab-org/gitlab!42420

fixed a typo in README.md

See merge request gitlab-org/gitlab!42414

Select projects for group code coverage report

See merge request gitlab-org/gitlab!42129

Create a modal for selecting the projects
for which you want to download the code
coverage CSV file.

Test that project homepage is accessible by crawlers

See merge request gitlab-org/gitlab!42180