Port of gitlab-ee!3867 to CE

See merge request gitlab-org/gitlab-ce!16775

# Conflicts:
#   db/schema.rb

Fix an issue where sparse checkout wasn't configured correctly

See merge request gitlab-org/gitlab-ce!16864

Moves more mr widget components into vue files

See merge request gitlab-org/gitlab-ce!16857

Moves author components into vue files

See merge request gitlab-org/gitlab-ce!16863

Fix typo in gitlab_runner_chart.md

See merge request gitlab-org/gitlab-ce!16860

Finish any remaining jobs for issues.closed_at

Closes #41595

See merge request gitlab-org/gitlab-ce!16858

Improve issue note dropdown and mr button

See merge request gitlab-org/gitlab-ce!16758

QA::Page::Component::Dropzone#initialize needs a QA::Page::Base object

See merge request gitlab-org/gitlab-ce!16852

Ensure we save QA screenshots to an absolute path

See merge request gitlab-org/gitlab-ce!16845

Backport changes in the application settings helper to CE

See merge request gitlab-org/gitlab-ce!16801

This was affecting the performance of `Gitlab::Git::Repository#squash`.

Add confirmation input component

See merge request gitlab-org/gitlab-ce!16816

Docs: update GitLab products description

See merge request gitlab-org/gitlab-ce!16862

Migrate Gitlab::Git::Repository#write_config to Gitaly

Closes gitaly#970

See merge request gitlab-org/gitlab-ce!16730

Hide pipeline schedule 'take ownership' for current owner

Closes #35285

See merge request gitlab-org/gitlab-ce!12986

* master: (38 commits)
  Added more tests and corrected typos
  Ban Rugged from Repository
  Improve doc/development/automatic_ce_ee_merge.md
  fixed infinite loop crashing tests
  Converted todos.js to axios
  Converted usage_ping.js to use axios
  Converted pager.js to axios
  Converted notifications_form.js to axios
  Converted notes.js to axios
  Converted branch_graph.js to axios
  Converted mini_pipeline_graph_dropdown.js to axios
  Include subgroup issuables on the group page
  Remove grpc and google-protobuf platform-specific version markers in Gemfile.lock
  Replace $.ajax in find file with axios
  Replace $.ajax in activity calendar with axios
  Remove namespaced internationalization import
  Fix subgroup creation docs
  Fix a JSON schema that doesn't include enough fields
  Make user/author use project.creator in most factories
  Enable RuboCop Style/RegexpLiteral
  ...

Speed-up the gitlab_git_test job

See merge request gitlab-org/gitlab-ce!16861

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

More conversions to axios

See merge request gitlab-org/gitlab-ce!16848

When Gitlab URL is set as `gitlabURL` in the configuration file, `helm install` is not happy and complains about a missing `gitlabUrl`.

Ban Rugged from Repository

See merge request gitlab-org/gitlab-ce!16855

Realtime update of pipeline status in Files view

Closes #35779

See merge request gitlab-org/gitlab-ce!16523

Make user/author use project.creator in most factories

Closes #36009

See merge request gitlab-org/gitlab-ce!13321

In the event of Sidekiq jobs getting lost there may be some rows left to
migrate. This migration ensures any remaining jobs are completed and
that all data has been migrated.

This fixes https://gitlab.com/gitlab-org/gitlab-ce/issues/41595