Backport changes for 16252 in EE add current_user to report comparison services

See merge request gitlab-org/gitlab-ce!32920

Add current user to comparison services for permissions

See merge request gitlab-org/gitlab-ee!16252

Add tests for regression
Pass current user id to calculate reactive cache

Add missing Vue.use(Vuex) in test

See merge request gitlab-org/gitlab-ce!32837

API to return list of countries for Trial sign up

See merge request gitlab-org/gitlab-ee!16162

Added specs for countries controller
Added missing frozen string literal
Reworded comments for gemfile
Addressing Rubocop public_send offence

Disable "transfer group" button when no parent group is selected

Closes #64799

See merge request gitlab-org/gitlab-ce!31387

Refactor project_edit.js to be reusable for this purpose

Closes #64799

Fix a broken spec on master

Closes #25791

See merge request gitlab-org/gitlab-ee!16451

Update Prometheus set up steps

See merge request gitlab-org/gitlab-ce!32898

Add support for custom domains to the Pages internal API

See merge request gitlab-org/gitlab-ce!32735

Add 30 and 60 minute buckets

Closes #67218

See merge request gitlab-org/gitlab-ce!32833

Port CE: Migrate discussion_ids on promoted epics

See merge request gitlab-org/gitlab-ce!30810

Notes on epics promoted from an issue used to get same discussion_id
as the notes from the issue the epic was promoted from, which would
cause problems when trying to reply to the epic discussion.

Migrate discussion_ids on promoted epics

See merge request gitlab-org/gitlab-ee!14708

Notes on epics promoted from an issue used to get same discussion_id
as the notes from the issue the epic was promoted from, which would
cause problems when trying to reply to the epic discussion.

Add a space between CI warning messages

Closes #13655

See merge request gitlab-org/gitlab-ee!15563

Finishes #13655

Update docs for added licenses in dependency list

See merge request gitlab-org/gitlab-ce!32389

Merge code quality docs together

See merge request gitlab-org/gitlab-ce!32737

Bring the example config and the main doc together to simplify
documentation for code quality

Change several links to relative

See merge request gitlab-org/gitlab-ce!32919

Make several links, mostly in admin troubleshooting,
relative, as is the standard

Don't retry the review-* jobs since they're allowed to fail

See merge request gitlab-org/gitlab-ce!32893

Update docs for non member unresolving resolved thread

See merge request gitlab-org/gitlab-ce!32375