also fix some code styling issues

 - only show in merge-requests
 - show as a little glyph

this will remove the need make N queries (per-note) at the
cost of having to mark notes with an attribute

this opens up the possibility for other special roles for notes

a new badge will be added when an user that doesn't yet
have any merged merge request is discussing on either issues or
merge requests that he created.

this is indented for people to use extra care when discussing with
a new contributor.

Clean up projects API docs

See merge request !14071

Wait for gitaly to boot during tests

See merge request !14051

Merge branch 'AshleyDumaine/gitlab-ce-36994-toggle-for-automatically-collapsing-outdated-diff-comments' into 'master'

Add setting to collapse outdated diff comments on push

Closes #36994

See merge request !14053

Improve Import/Export memory use and performance

Closes #35389 and #26556

See merge request !13957

Enable auto-retry in GitLab CI/CD pipeline

Closes #37281

See merge request !14033

Update PROCESS.md to point to retro and kickoff info

See merge request !14059

Merge branch '19650-remove-admin-section-from-search-results-if-user-doesnt-have-access' into 'master'

Hide admin link from default search results for non-admins

Closes #19650

See merge request !14015

Clean up new navigation templates

See merge request !13983

Fix wrong API status codes

See merge request !14069

Resolve "Update the docs for GPG for gpg2 - [secret key not available]"

Closes #36859

See merge request !14024

Update 'Visibility of pipelines'

Closes #34360

See merge request !13948

Move Incoming Email checks to System Checks

See merge request !14028

Use flexbox for prometheus graph row grouping instead of bootstrap classes

See merge request !14006