unifies mr diff file button style

Closes #27291

See merge request !8874

Fix filtered search manager spec teaspoon error

See merge request !8919

Add ability to define a coverage regex in the .gitlab-ci.yml

Closes #20428

See merge request !7447

Merge branch '25811-pipeline-number-and-url-do-not-update-when-new-pipeline-is-triggered' into 'master'

Update pipeline and commit URL and text on CI status change

Closes #25811

See merge request !8351

Snippet spam

Closes #26276

See merge request !8911

Snippet spam

Closes #26276

See merge request !8911

resolve deprecation warnings

Closes #27423

See merge request !8855

Reduce the number of loops that Cycle Analytics specs use

See merge request !8871

Port 'Active tense test coverage' changes from EE

See merge request !8921

Merge branch '27067-mention-user-dropdown-does-not-suggest-by-non-ascii-characters-in-name' into 'master'

Resolve "Mention @user dropdown does not suggest by non-ASCII characters in name"

Closes #27067

See merge request !8729

Fixes broken build: Use jquery to get the element position in the page

See merge request !8926

Move Dashboard shortcuts specs from Spinah to RSpec

See merge request !8899

Apply the same spam checks to public snippets (either personal snippets
that are public, or public snippets on public projects) as to issues on
public projects.

When a snippet is submitted, but there's an error, we didn't keep the
visibility level. As the default is private, this means that submitting
a public snippet that failed would then fall back to being a private
snippet.

UX guide: Update animation guidance to 100ms

See merge request !8692

Change the reply shortcut to focus the field even without a selection.

See merge request !8873

Reduce hits to LDAP on Git HTTP auth by reordering auth mechanisms

Closes #24462

See merge request !8752

Ports changes from https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/642 back into CE

Fix permalink discussion note being collapsed

Closes #26860, #27089, and #27151

See merge request !8773

Fix permalink discussion note being collapsed

Closes #26860, #27089, and #27151

See merge request !8773

Fix permalink discussion note being collapsed

Closes #26860, #27089, and #27151

See merge request !8773

See https://gitlab.com/gitlab-org/gitlab-ce/issues/27402

Fix filtering usernames with multiple words

Closes #27404

See merge request !8851