Merge branch 'ce-6983-promote-starting-a-gitlab-com-trial' of https://gitlab.com/gitlab-org/gitlab-ce into ce-6983-promote-starting-a-gitlab-com-trial

Move group labels AR code into finder

Closes #49653

See merge request gitlab-org/gitlab-ce!21854

Add Baw-Appie as Korean proofreader

See merge request gitlab-org/gitlab-ce!20586

Upgrade eslint to v5.x

See merge request gitlab-org/gitlab-ce!21825

Change the tier badge of Geo to be PREMIUM

See merge request gitlab-org/gitlab-ce!21877

Increase performance when creating discussion on diff

Closes #49002

See merge request gitlab-org/gitlab-ce!21743

Fixes WIP text with two different colors in MR edit page

Transforms a `p` element in a `div` to guarantee WIP
the explanation is rendered inside `text-muted`

See merge request gitlab-org/gitlab-ce!21740

Use gitlab-ui 1.5.1

See merge request gitlab-org/gitlab-ce!21865

Use the new gitaly auth scheme (v2)

See merge request gitlab-org/gitlab-ce!21417

Backport Admin menu changes from EE

See merge request gitlab-org/gitlab-ce!21864

Doesn't synchronize default branch for push mirrors

Closes #51725

See merge request gitlab-org/gitlab-ce!21861

Using path syntax to include Admin namespace as part of Project
controller menu expansion code, in order to not conflict with same
controller name but in Geo namespace.

Align form labels following Bootstrap 4 docs

See merge request gitlab-org/gitlab-ce!21752

We should not synchronize the source repository with
the target root ref while updating a push mirror.

Correct grammar (setup to set-up) in Docs

See merge request gitlab-org/gitlab-ce!21857

Allows to sort projects by most stars

Closes #47203

See merge request gitlab-org/gitlab-ce!21762

Cycle Analytics - Fix broken feature page link

See merge request gitlab-org/gitlab-ce!21855

Rename some css classes that are shared between issues and mrs

See merge request gitlab-org/gitlab-ce!21856