Move troubleshooting to its own topic

See merge request gitlab-org/gitlab!79687

Right now the troubleshooting content took up approximately
half of the page where we're telling customers about the feature.
So I moved it to its own page.

Small edits for consistency

See merge request gitlab-org/gitlab!79456

I noticed we weren't consistent with GitLab managed Terraform states
so made it consistent, as well as a few small edits to pare
down the language

Ensure legacy viewer is loaded when highlight.js FF disabled + general cleanup

See merge request gitlab-org/gitlab!79647

Record and track application boot time

See merge request gitlab-org/gitlab!79139

This change captures and emits the time it takes
for the primary Rails process to start up.

- Log it to application JSON log
- Emit it to prometheus
- Print it to the console message

This is only active for Puma, Sidekiq and Rails console.

Changelog: added

Use gl_badge_tag for admin sidebar

See merge request gitlab-org/gitlab!77604

Update Content Editor Packages

See merge request gitlab-org/gitlab!77581

Remove WIP support from commits

See merge request gitlab-org/gitlab!79695

Add version information for new Pages feature

See merge request gitlab-org/gitlab!79775

Catch HTTP errors exceptions while streaming audit events.

See merge request gitlab-org/gitlab!79410

Add help text for group name and remove now unnecessary documentation

See merge request gitlab-org/gitlab!79598

Update alpha/beta feature links to use local docs definition page

See merge request gitlab-org/gitlab!79830

Finalize backfilling ci mirror tables

See merge request gitlab-org/gitlab!79344

Resolve "Logs transitions and errors for BatchedJob"

See merge request gitlab-org/gitlab!75110

Remove noop :not(.md) block

See merge request gitlab-org/gitlab!78935

Changelog: fixed
EE: true

Treat API requests from the frontend as web traffic in the rate limiter (third attempt 🥉)

See merge request gitlab-org/gitlab!79341

Update badge in accessibility issue body

See merge request gitlab-org/gitlab!79777

Make badge in accessibility issue body
Pajamas-compliant

Changelog: other

Delete unused button css

See merge request gitlab-org/gitlab!79756

Merge branch 'kassio/remove-github_importer_use_diff_note_with_suggestions-feature-flag' into 'master'

Remove github_importer_use_diff_note_with_suggestions feature flag

See merge request gitlab-org/gitlab!79661

Make image markers independent of badge class

See merge request gitlab-org/gitlab!75627

The original motivation for this was to make them independent of
the `badge` class, since they weren't really badges.

Part of https://gitlab.com/groups/gitlab-org/-/epics/7174.

Changelog: other

Create API for Timeline Event

See merge request gitlab-org/gitlab!78884

Expose language field in GraphQL blob type

See merge request gitlab-org/gitlab!78895

Update translation levels - Feb 2022

See merge request gitlab-org/gitlab!79801

DRY new_project_sast_enabled experiment field with partials

See merge request gitlab-org/gitlab!77057

Fix Incoming Webhooks app page link in doc

See merge request gitlab-org/gitlab!79828

Remove redundant index on clusters_kubernetes_namespaces

See merge request gitlab-org/gitlab!79597

Improve copy on Slack app delete project modal

See merge request gitlab-org/gitlab!79714

- Start using state machine
- Log transitions
- Log exceptions
- Record transitions + exceptions

Changelog: added

Relates to https://gitlab.com/gitlab-org/gitlab/-/merge_requests/75110

Add deprecation notes to CNS and CHS docs

See merge request gitlab-org/gitlab!79787

Trigger EE EventStore event when new members are added to a group

See merge request gitlab-org/gitlab!79291

Add MR title regex example for rules

See merge request gitlab-org/gitlab!79755