clears all tmp files after cancelling edit mode

specs

this uses the new data structure of adding into the different arrays
which makes the code a lot easier to work with.

Some changes need to be made around commiting & changing the content.

[ci skip]

[ci skip]

Closes #38614

Add loading button

See merge request gitlab-org/gitlab-ce!14883

Update using_docker_images.md

See merge request gitlab-org/gitlab-ce!14988

Remove Diff class from global namespace

See merge request gitlab-org/gitlab-ce!14965

Fix the broken .tests-metadata-state definition

Closes #39308

See merge request gitlab-org/gitlab-ce!14969

Fix deletion of container registry or images returning an error

Closes #39354

See merge request gitlab-org/gitlab-ce!14992

The fog-aliyun gem had a bug in v0.1.0 for file storage creation/update. This…

Closes #39126

See merge request gitlab-org/gitlab-ce!14991

Encompasses designs from
 - https://gitlab.com/gitlab-org/gitlab-ce/issues/23206#note_43355199
 - https://gitlab.com/gitlab-org/gitlab-ce/issues/29985#note_30417407

A successful DELETE call would result in a 204 No Content result,
which would have an empty response body. Don't automatically try
to parse this value as JSON both because there is no additional
information passed in the response body.

Closes #39354

The fog-aliyun gem had a bug in v0.1.0 for file storage creation/update. This merge requests update the gem to v0.2.0 which contains the fix:

https://github.com/fog/fog-aliyun/commit/a7456ca6b63e5a0d88c849914679d2fa4707c10c

Closes #39126

Decrease ABC threshold to 54.28

See merge request gitlab-org/gitlab-ce!14920

Make sure we render events for projects within a group

Closes #39305

See merge request gitlab-org/gitlab-ce!14974

[ci skip]

Resolve "Remove help text regarding group issues on group issues page (and group merge requests page)"

Tip from
https://robots.thoughtbot.com/write-reliable-asynchronous-integration-tests-with-capybara#directly-interacting-with-javascript

New Crowdin translations

See merge request gitlab-org/gitlab-ee!3030

[ci skip]