Add redis caching of individual highlighted diffs

Closes #30550

See merge request gitlab-org/gitlab!19917

Merge branch '31003-increase-testing-coverage-of-ui-for-disabling-group-project-email-notifications' into 'master'

Increase testing coverage of "UI for disabling group/project email notifications"

See merge request gitlab-org/gitlab!20499

Bump CS_MAJOR_VERSION from 1 to 2

See merge request gitlab-org/gitlab!20986

- Version 1 of the Container Scanning tool
  produced a report using the format specified by
  clair-scanner (github.com/arminc/clair-scanner),
  however, version 2 of the Container Scanning
  tool now produces a report using the GitLab
  Analyzers Common Library Format.  In order to
  make use of the new report format, we need to
  update the CS_MAJOR_VERSION.

Resolve "Change Title of Merge Request Approvals"

Closes #36937

See merge request gitlab-org/gitlab!21079

Remove useless DEP_SCAN_DISABLE_REMOTE_CHECKS var

See merge request gitlab-org/gitlab!20982

Respond with 204 no content when pages domain does not exist

See merge request gitlab-org/gitlab!21059

Disable import/order ESLint rule globally

See merge request gitlab-org/gitlab!21129

in project/group settings

Create issues from sentry details page

See merge request gitlab-org/gitlab!20666

Update JenkinsCI Service Troubleshooting

See merge request gitlab-org/gitlab!20140

* Adds support for plurals, and updates the international text
* Adds a disabled state for button once its clicked
* Adds a spec to test submit
* Some more function refactors

  * Updates button to POST to issues endpoint
  * Updates path in dataset in order to create issue
  * Adds markdown styling to POST body
  * Adds form and hidden input so button can post
  * Adds csrf token
  * Updates international text

Remove panel via vuex in dashboard

See merge request gitlab-org/gitlab!21096

Replace board service in list spec.js

See merge request gitlab-org/gitlab!20877

Don't make external requests

Closes #38045

See merge request gitlab-org/gitlab!21161

Use the local server to serve badges instead.

For the group badge case, it seems we require a project path to serve a
badge, so I had to create a project

Fixes https://gitlab.com/gitlab-org/gitlab/issues/38045

Note in QA Resources doc that API resources are paginated

See merge request gitlab-org/gitlab!21154

In using_docker_images.md, explicitly document that manually Base64-encoded...

See merge request gitlab-org/gitlab!20925

In using_docker_images.md, explicitly document that manually Base64-encoded auth. info needs to be wrapped in a Docker JSON config. structure, not used bare, for the value of DOCKER_AUTH_CONFIG.

Merge branch '2109-add-documentation-regarding-new-application-setting-that-allows-only-admins-to-remove-projects-docs' into 'master'

Docs - move section about  default project deletion protection

See merge request gitlab-org/gitlab!19821

Docs - Geo admin area showing 404 error for a secondary node

See merge request gitlab-org/gitlab!20513

Update recommended base AWS instance to reflect current and more cost effective m5 EC2 instance

See merge request gitlab-org/gitlab!21020

Unify finding an actor in the internal API

See merge request gitlab-org/gitlab!20788

Update docs style guide to recommend avoiding Latin phrases

Closes technical-writing#77

See merge request gitlab-org/gitlab!21046

Add 2k architecture to HA docs

See merge request gitlab-org/gitlab!21063

Status: work in progress
Issue: https://gitlab.com/gitlab-org/quality/performance/issues/58

Make import/no-cycle ESLint rule an error

See merge request gitlab-org/gitlab!21110