* upstream/master: (225 commits)
  Add changelog entry
  Backports EE 2756 logic to CE.
  Make rubocop happy
  Make profile settings dropdown consistent
  Add filter by my reaction
  Update spec initialization with it being a shared component
  Update identicon path and selector
  Renamed to `identicon` and make shared component
  Merge branch 'master-i18n' into 'master'
  Fix broken Frontend JS guide
  Replace 'project/star.feature' spinach test with an rspec analog
  Adds position fixed to right sidebar
  Fixes the margin of the top buttons of the pipeline page
  Remove commented out code
  Better align fallback image emojis
  Decrease Metrics/CyclomaticComplexity threshold to 15
  Add changelog
  Respect the default visibility level when creating a group
  Further break with_repo_branch_commit into parts
  Make sure inspect doesn't generate crazy string
  ...

Update backup_restore.md documentation regarding S3 and IAM profiles.

See merge request !13871

Perf.slow issuable

Closes #32844

See merge request !13685

Improve AutocompleteController#users.json performance

Closes #36879

See merge request !13754

Fixes the margin of the top buttons of the pipeline page

Closes #34990

See merge request !13908

Respect the default visibility level when creating a group via the API

Closes #37198

See merge request !13903

API: Respect the 'If-Unmodified-Since' for delete endpoints

See merge request !9621

Make file template dropdowns consistent

See merge request !13577

Make profile settings dropdown consistent

See merge request !13623

Backports EE 2756 logic to CE.

See merge request !13892

Make notification dropdowns consistent

See merge request !13624

Better align fallback image emojis

Closes #37147

See merge request !13881

Make Identicon for avatars a shared component

Closes #35010

See merge request !13919

Make issuable dashboard dropdowns consistent

See merge request !13594

Port translations from EE to CE

See merge request !13918

Add filter by my reaction

Closes #35618

See merge request !12962

Merge branch 'pawel/bump_prometheus_client_mmap_version_to_fix_performance_degradation' into 'master'

Update Prometheus Client MMAP gem to version that fixes performance degradation

See merge request !13898

Add Geo to the list of team labels

See merge request !13896

Eager load head pipeline projects for MRs index

See merge request !13877

New Crowdin translations

See merge request !2743

Replace 'project/star.feature' spinach test with an rspec analog

See merge request !13855

Fix broken Frontend JS guide

See merge request !13912

Adds position fixed to right sidebar

Closes #37144

See merge request !13494

Fixes the breadcrumb container when in issue boards

Closes #36561

See merge request !13655

Decrease Metrics/CyclomaticComplexity threshold to 15

See merge request !13905

Fix https://gitlab.com/gitlab-org/gitlab-ce/issues/37147

Remove `is_` prefix from predicate method names

See merge request !13810