Fixed pipeline action tooltips being cut off

Closes #29314

See merge request !9960

Adds pipeline mini-graph to system information box in Commit View

Closes #28494

See merge request !9902

Fix reply by email by fixing config/mail_room.yml to be interpretable without ActiveSupport

See merge request !9979

Moved the gear settings dropdown in the group view to a tab

Closes #23304

See merge request !9882

Revert the AddNotifiedOfOwnActivityToUsers migration

See merge request !9973

Revert "Merge branch 'option-to-be-notified-of-own-activity' into 'master'

See merge request !9974

Add missing steps of Pages source installation

Closes #29372

[ci skip]

See merge request !9923

Add quick submit for snippet forms

Closes #27534

See merge request !9911

This reverts commit 5e966688, reversing
changes made to b35378a9.

Better priority sorting

Closes #28754

See merge request !9938

Revert "Merge branch 'google-protobuf-3.2.0.1' into 'master'"

See merge request !9971

prevent filtering Issues by multiple milestones, authors, or assignees

Closes #27174

See merge request !9406

Copy code as GFM from diffs, blobs and GFM code blocks

See merge request !9874

don't show scrollbar on search field unless necessary

See merge request !9880

This reverts merge request !9932

to the first option inside said subtab.

Also code cleanup