Combine frontend and backend testing level documentation

Closes #26159

See merge request gitlab-org/gitlab!22906

This commit provides English-language style and tone changes to
bring the sections closer to GitLab's style guide. It does not
alter the facts presented on the page, just tone, style, and
formatting.

Create an Analytics area in the navigation sidebar for groups

See merge request gitlab-org/gitlab!23402

- Behind feature flag: analytics_pages_under_group_analytics_sidebar
- Move Issue Analytics navbar item.
- Move Insights navbar item.
- Move Contribution Analytics navbar item.

Generic Vue Alert Component

Closes #197113

See merge request gitlab-org/gitlab!23125

https://gitlab.com/gitlab-org/gitlab/-/merge_requests/23125

Remove duplicate test

See merge request gitlab-org/gitlab!23855

Separate group and project stats entities into own classes

See merge request gitlab-org/gitlab!24070

Show security report out-of-date message for Active MRs

See merge request gitlab-org/gitlab!23575

When a merge is in closed or merged state, the outdated message
will not be displayed for the security reports

Correct spelling in the api section in docs

See merge request gitlab-org/gitlab!23555

The following pages in the API section had spelling errors, or
words that needed to be written as acronyms.

	modified:   doc/api/groups.md
	modified:   doc/api/pages.md
	modified:   doc/api/projects.md
	modified:   doc/api/settings.md

Merge branch '198520-tag-expiration-only-show-the-cancel-button-when-a-change-has-been-made' into 'master'

Docker expiration policy settings: disable cancel button with no changes

See merge request gitlab-org/gitlab!23958

- disable button
- add getter to calculate edited state

Remove the `Gitlab::Database::Subquery.self_join` helper

See merge request gitlab-org/gitlab!23854

Documentation change redis.md with an updated required Redis version

Closes #196699

See merge request gitlab-org/gitlab!23888

With GL 12.1 and later we require Redis 3.2 or later for
compatibility because we rely on sending an optional parameter
to SPOP.

Add documentation for ReactiveCaching

See merge request gitlab-org/gitlab!23331

Refactor background migration code for user mentions

See merge request gitlab-org/gitlab!23951

Merge branch '198624-disable-apollo-cache-on-the-cases-where-apollo-client-is-used-within-vuex' into 'master'

Disable Apollo cache if Apollo Client is used within Vuex

Closes #198624

See merge request gitlab-org/gitlab!23768

Update GitLab Runner Helm Chart to 0.13.1/12.7.1

See merge request gitlab-org/gitlab!23588

Fix JIRA::HTTPError initialize parameter

See merge request gitlab-org/gitlab!24060

Display warning flash if design upload is skipped

See merge request gitlab-org/gitlab!21615

- Also limit listing skipped designs to 2 files in flash

Add Gitlab.config.gitlab.host to development host whitelist

Closes #199701

See merge request gitlab-org/gitlab!24044

Resolve "Sort Audit Log in the UI"

Closes #10919

See merge request gitlab-org/gitlab!22887

This is the initial commit that adds a sort by dropdown
to audit logs.

Updates the audit log event view to add the dropdown.

First pass at implementing sorting in the audit log
event controller.

Introduce CI/CD dev guides

See merge request gitlab-org/gitlab!23670

* add first paragraph about job scheduling
* add link to dev guides
* apply Technical Writer suggestions

Resolve "Set a limit on the date range selection for Cycle Analytics"

See merge request gitlab-org/gitlab!22968

This commit adds a range limit to the shared analytics
daterange component.

It also adds a date range indicator which displays the
number of days in the currently selected range.

Correct the MR context commits endpoint

Closes #199724

See merge request gitlab-org/gitlab!24054

Separate project classes into own class files

See merge request gitlab-org/gitlab!23887

Standardize code block naming to shell

See merge request gitlab-org/gitlab!24032

Find and replace sh with shell