Fix Ctrl+Click support for Todos and Merge Request page tabs

Closes #24716

See merge request !8898

Merge branch '25487-small-improvements-to-the-ui-of-mattermost-and-slack-command-services' into 'master'

Resolve "Small improvements to the UI of Mattermost and Slack Command services"

Closes #25487

See merge request !8491

Layer dropdowns over right sidebar

Closes #27639

See merge request !9004

Disallow CI’s finished time wrapping

See merge request !8499

Fix broken anchor links when special characters are used

Closes #26778

See merge request !8961

Don't fail the build if there is no coverage files

See merge request !9037

Signed-off-by: Rémy Coutable <remy@rymai.me>

Updated specs

Align Segoe UI label text

See merge request !8884

Improved timeago performance

Closes #25728

See merge request !8231

Makes stop button visible in environment page

Closes #24147

See merge request !7379

Refresh authorizations when transferring projects

See merge request !9029

Resolve "spec/features/issues/filtered_search/dropdown_label_spec.rb
takes 10 minutes to run"

Closes #27564

See merge request !8929

Fixed backup.rake colorize method following Pages -> CE

See merge request !9031

Add keyboard shortcut to move to file permalink `y`

Closes #8082

See merge request !8799

Cherry-picked 'Remove colorize methods that weren't in CE.'

Use reCaptcha when an issue identified as spam

Closes #21518

See merge request !8846

Remove deploy key endpoint

Closes #20569

See merge request !8716

Fix MR widget url

Closes #27632

See merge request !8989

This ensures that project authorizations are refreshed when moving a
project from one namespace to another. When doing so the permissions for
all users of both the old and new namespaces are refreshed.

See #26194 for more information.

Fix syntax error in init.d/gitlab after Pages -> CE

Closes #27785

See merge request !9026

Update .gitignore templates

See merge request !9015

Update guides for 8.17 version

See merge request !9014

Cherry-picked ‘Fix syntax error in conditional statement’