Add Gitaly to the architecture of the application

See merge request !8264

Slack docs [ci skip]

See merge request !8269

Resolve "Labels are not consistent on all pages"

Closes #25951

See merge request !8256

[ci skip]

Increase left padding of filter row labels

See merge request !8258

[ci skip]

Fix viewing "build failed" TODOs

Closes #25979

See merge request !8262

Docs on MM auto config

See merge request !8230

Fix format of Slack when result is nil

Closes #25954

See merge request !8248

Fix hover pipeline

See merge request !8253

Fix dropdown content non appearing in MR view

Closes #25961

See merge request !8255

Improve autodeploy docs

See merge request !8242

Fix Mattermost command creation by specifying username

See merge request !8257

Added both to the graph, and to the high level overview. Explaining what
is the goal of the system and how does it connect to the other systems.

Don't render inline math when dollar signs are inside markup

See merge request !8259

Do not show retried builds in pipeline stage dropdown

Closes #25980

See merge request !8260

Cache last commit id for path

See merge request !8098

Add MR ID to Changelog entry

Fix lookup of project by unknown ref when caching is enabled

Closes #24224

See merge request !7988

Whitelist next project names: notes, services

See merge request !8239

Exclude non existent repository storages.

See merge request !8244

fixed minor animation glitch in mini pipeline graph animation

See merge request !8243