Remove duplicated approval endpoints

Closes #10329

See merge request gitlab-org/gitlab-ee!13658

Fix participants list padding

Closes #62432

See merge request gitlab-org/gitlab-ce!28873

Updated the padding to our standard size

Docs: Convert links in various docs to relative

See merge request gitlab-org/gitlab-ce!28967

Docs: Convert remaining links in /user to relative

See merge request gitlab-org/gitlab-ce!28964

Docs: Add introduced column to table in Personal Access Tokens doc

Closes #60531

See merge request gitlab-org/gitlab-ce!28874

Docs: Finish changing links to relative in user/project (part 2)

See merge request gitlab-org/gitlab-ce!28934

Docs: Change links to relative in /user/project (Part 1)

See merge request gitlab-org/gitlab-ce!28920

Docs: Clean up tables in permissions doc

Closes #59249

See merge request gitlab-org/gitlab-ce!28908

Help content popover component for new user onboarding

See merge request gitlab-org/gitlab-ee!13363

- Add specs for help content popover
- Add changelog entry

Mirror scheduling: Remove feature flag

Closes #5035 and #11499

See merge request gitlab-org/gitlab-ee!13422

Limit milestones to before year 9999

Closes #58576

See merge request gitlab-org/gitlab-ce!28742

Change query to work on mysql as well. Also set entire date because setting only the year can trip 'start_date_should_be_less_than_due_date'

Remove nils from project_statistics.packages_size

See merge request gitlab-org/gitlab-ce!28400

Now it defaults to 0

Setup Phabricator import

Closes #60562

See merge request gitlab-org/gitlab-ce!27877

Setup Phabricator import

See merge request gitlab-org/gitlab-ee!13569

delete group confirm popup mention projects deletion

Closes #62148

See merge request gitlab-org/gitlab-ce!28899

Externalize strings of Two-Factor Authentication page in user profile

See merge request gitlab-org/gitlab-ce!28749

Externalize strings of Two-Factor Authentication page in user profile

See merge request gitlab-org/gitlab-ee!13339

Externalize strings of password page in user profile

See merge request gitlab-org/gitlab-ce!28744

Externalize strings of password page in user profile

See merge request gitlab-org/gitlab-ee!13336

Remove nils from project_statistics.packages_size

See merge request gitlab-org/gitlab-ee!13163

Action popover component for new user onboarding

See merge request gitlab-org/gitlab-ee!13346

- Add specs for action popover
- Add changelog entry

This sets up all the basics for importing Phabricator tasks into
GitLab issues.

To import all tasks from a Phabricator instance into GitLab, we'll
import all of them into a new project that will have its repository
disabled.

The import is hooked into a regular ProjectImport setup, but similar
to the GitHub parallel importer takes care of all the imports itself.

In this iteration, we're importing each page of tasks in a separate
sidekiq job.

The first thing we do when requesting a new page of tasks is schedule
the next page to be imported. But to avoid deadlocks, we only allow a
single job per worker type to run at the same time.

For now we're only importing basic Issue information, this should be
extended to richer information.