Add ability to make Jira comments optional

See merge request gitlab-org/gitlab!19004

- Add column to store setting
- Update views, controller and params to handle updating the setting
- Add logic to jira_service to disable comments

Fix `group_epic_link_path` method

Closes #36924

See merge request gitlab-org/gitlab!20610

Add 'Download' button to Performance Bar

Closes #28222

See merge request gitlab-org/gitlab!20205

This change adds a new 'Download' button to the Performance Bar
that allows users to download the raw Perf Bar JSON from all
completed requests.

Turn on frozen string cop for all of spec

Closes #27703

See merge request gitlab-org/gitlab!20754

Closes:

https://gitlab.com/gitlab-org/gitlab/issues/27703

Fix  two bugs in environments table

See merge request gitlab-org/gitlab!20737

Update billing page trial CTAs

See merge request gitlab-org/gitlab!20383

Add option to delete cached Kubernetes namespaces

See merge request gitlab-org/gitlab!20411

Convert flash epic error to form validation error

See merge request gitlab-org/gitlab!20130

Error on adding issue or epic to epic:
- Remove error banner
- Add validation error message on field
- Field is outlined in red
- Error gets cleared when clearing input tokens

- Modify changelog to describe user-facing change

- Use epic group rather than parent group
- Use path rather than name in reference test
- Test child epics in subgroups

FE Support batch diff loading

See merge request gitlab-org/gitlab!18544

File navigation is broken though.

Resolve "Productivity Analytics: Filtered search layout broken"

See merge request gitlab-org/gitlab!20538

Improvement of the CI/CD script keyword

See merge request gitlab-org/gitlab!19848

[QA] Fix login test

Closes #35875

See merge request gitlab-org/gitlab!20683

Skip GitHub OAuth Test

See merge request gitlab-org/gitlab!20708

Docs: Fix typo in Vue Expert Role definition

See merge request gitlab-org/gitlab!19535

Add docs about passing CI variables as push options

See merge request gitlab-org/gitlab!20634

Migrate notes specs to Jest

See merge request gitlab-org/gitlab!20654

Clarify latest artifact

See merge request gitlab-org/gitlab!19839

Quarantine failing test

See merge request gitlab-org/gitlab!20748

Resolve "doc update reset a wiki project via a Rails console"

Closes #36798

See merge request gitlab-org/gitlab!20428

Cross link between feature flag guidance

Closes #34854

See merge request gitlab-org/gitlab!19198

Document sprintf usage

Closes #21344

See merge request gitlab-org/gitlab!20396

Enable frozen string for middleware specs

See merge request gitlab-org/gitlab!20692

Partially addresses:

https://gitlab.com/gitlab-org/gitlab/issues/27703

Enable frozen string for kubernetes specs

See merge request gitlab-org/gitlab!20691

Enable frozen string for import-export specs

See merge request gitlab-org/gitlab!20690

Fix incorrect new branch name from issue

Closes #20577

See merge request gitlab-org/gitlab!20677

Fix cron parsing for Daylight Savings

Closes #37014

See merge request gitlab-org/gitlab!20667