Apparenly dynamic imports don't work properly. Let's just overwrite it
in the Enterprise version.

Previously promotion columns did show unnecessary headers (adding issues
and WIP config). This adds a check and proper tests.

Currently the board.js component is rendered based `text/x-template`
which is created in HAML. We want to utilize a single file component
(SFC), as this makes it testable with jest without generating fixtures.

This commit is quite large, we implement the change behind a feature
flag and have quite a lot of confidence thanks to our integration tests
and pinning tests. Changes done in this commit:

- adding a new SFC and it's Enterprise counterpart
- utilize a feature flag to either use the new component or the old.
- Add jest specs for the new component based on old karma specs
- Utilize GitLab UI's Icon component for all icons
- Add two properties to the new component, so that we can pass group IDs
  and whether a user can edit the board column
- Rename board_component to board_column This reflects much better what
  the component is actually about: It is a column in our issue boards.
Co-authored-by: Lukas Eipert <leipert@gitlab.com>
Co-authored-by: Mark Florian <mflorian@gitlab.com>
Co-authored-by: Paul Slaughter <pslaughter@gitlab.com>

To run the pin test, revert this commit then run

```
./scripts/pin_boards.sh
```

- Adds pinning script
- Adds pinning oracles

**How to create test oracle?**

```
PIN_TYPE=oracle scripts/pin_boards.sh
```

**How to run test?**

```
scripts/pin_boards.sh
```

Merge branch '212817-http-status-code-for-todos-api-when-an-epic-cannot-be-found-by-a-legitimate-user-is-wrong' into 'master'

Resolve "HTTP status code for Todos API when an epic cannot be found by a legitimate user is wrongly returning 403 instead of 404"

Closes #212817

See merge request gitlab-org/gitlab!28310

Remove duplicate spec example in autolink filter

See merge request gitlab-org/gitlab!28607

Merge branch '18140-add-to-next-and-previous-commit-buttons-when-viewing-commits-in-merge-request' into 'master'

Add previous and next commit IDs to the diffs JSON response

Closes #18140

See merge request gitlab-org/gitlab!27528

Measure custom dashboard processing time

See merge request gitlab-org/gitlab!27875

Remove obsolete example for reopened merge request

See merge request gitlab-org/gitlab!28612

Optimize suggestions counters in usage data

See merge request gitlab-org/gitlab!26443

- Add a summary metric to measure the amount of time taken to process
dashboards.

Track buy more ci minutes click

Closes gitlab-org/growth/product#1496

See merge request gitlab-org/gitlab!28463

Simplify failover documentation

Closes gitaly#2584

See merge request gitlab-org/gitlab!28405

Suggestions counter times out on gitlab.com. Adds an index to optimize
suggestion counters join. Also uses manual start/finish parameters for
the batch counting.

Expose code_navigation_path and definition_path_prefix for merge request diffs

See merge request gitlab-org/gitlab!28349

Update feature categories

See merge request gitlab-org/gitlab!28553

Enable code fence check in markdownlint

See merge request gitlab-org/gitlab!28627

Edits to use workflow rules as primary method

See merge request gitlab-org/gitlab!28374

Related to doc/ci/merge_request_pipelines/index.md

Web IDE commit sidebar should preserve action

Closes #212276

See merge request gitlab-org/gitlab!27876

Update docs for Milestones in Roadmap

See merge request gitlab-org/gitlab!28388

Filter a TestReport by attachment

See merge request gitlab-org/gitlab!27839

Filter a TestReport by attachment
Filter a TestSuite by attachment

Add foreign key from chat_name to service

See merge request gitlab-org/gitlab!24341

Docs: Update Okta Group SAML info

See merge request gitlab-org/gitlab!28385

- Fix orphaned data causing 500 in profile/chat_names when projects
  are removed
- Add foreign key to prevent future orphaned rows
- Add before destroy hook to project cleaning up any chat names

Relates to https://gitlab.com/gitlab-org/gitlab/issues/25230

Add tracking to clicking buy ci minutes

Closes gitlab-org/growth/product#1495

See merge request gitlab-org/gitlab!28476

Correct project subscriptions form action path

See merge request gitlab-org/gitlab!27678

Add test coverage for the pipeline
subscriptions feature. Add id to
the pipeline subscription form.

In https://gitlab.com/gitlab-org/gitlab-foss/-/merge_requests/12972
we've consolidated the MR state "reopened" into "opened".

Refactor compare license scanning reports service test

See merge request gitlab-org/gitlab!28197

Move Alerting feature to Core

See merge request gitlab-org/gitlab!28196

Moves Settings > Integrations > Prometheus > Alerts to Core

https://gitlab.com/gitlab-org/gitlab/-/merge_requests/28196