Use ReactiveCaching to update external CI status asynchronously

See https://dev.gitlab.org/gitlab/gitlabhq/merge_requests/2055

Fixes pipeline status cell is too wide by adding missing classes in table head cells

Closes #26615

See merge request !8549

Add changelog for search-bar-first-iteration

See merge request !8546

Adds mr id to changelog

Remove redundant parentheses in TodosController spec

[ci skip]

See merge request !8548

Use configured git rather thans system git

See merge request !8460

Do not check for valid url for .gitlab-ci.yml

Closes #22970

See merge request !8451

Fill missing authorized projects rows

Closes #26194

See merge request !8476

Remove more orphans when removing stray namespaces

Closes #25146

See merge request !7841

Scroll to bottom on build completion if autoscroll was active

Closes #26109

See merge request !8391

Search bar first iteration

Closes #21747

See merge request !7345

Add support for PlantUML diagrams in Asciidoc.

Closes #17603

See merge request !8537

Do not remove "autodeploy" directory when fetching CI templates

See merge request !8517

Fix project queued for deletion re-creation tooltip

Closes #17235

See merge request !5393

This MR enables rendering of PlantUML diagrams in Asciidoc documents. To add a
PlantUML diagram all we need is to include a plantuml block like:

```
[plantuml, id="myDiagram", width="100px", height="100px"]
--
bob -> alice : ping
alice -> bob : pong
--
```

The plantuml block is substituted by an HTML img element with *src* pointing to
an external PlantUML server.

This MR also add a PlantUML integration section to the Administrator -> Settings
page to configure the PlantUML rendering service and to enable/disable it.

Closes: #17603

Refactor admin controllers params

See merge request !8521

Signed-off-by: Rémy Coutable <remy@rymai.me>

Signed-off-by: Rémy Coutable <remy@rymai.me>

Signed-off-by: Rémy Coutable <remy@rymai.me>

Fix Users API to accept confirm parameter

Closes #26295

See merge request !8531

Add detail to backup_restore omnibus remote storage docs

See merge request !8306

Keep max width on MR content on side by side view

Closes #25907

See merge request !8467

This ensures that the project_authorizations rows exist for all users
for which this data has not yet been populated.

Fixes #26194

Resolve "Alerts should be responsive"

Closes #25776

See merge request !8424

Fixes https://gitlab.com/gitlab-org/gitlab-ce/issues/25146

Update templates - 8.16 RC1

See merge request !8505

Fix Rubocop configuration files to avoid CE to EE merge problems

See merge request !8525

Centered alert text and prevented alert actions links from floating
right for viewports below medium width (992px)

Centered alert text stopped alert actions from floating right for viewports below medium width (992px)

Update styles to use correct screen width variable for max-width media query

Added unreleased changelog

Added class to alert links wrapper
Updated styles for new class, float alert links on larger screens