Fix 8.17 upgrade documentation

Closes #28021

See merge request !9285

Speed up project_tree_restorer_spec

Closes #28235

See merge request !9266

Disables add issue button

Closes #27931

See merge request !9100

Renders pagination again for pipelines table

Closes #28299

See merge request !9315

Simplify GitLab Pages admin docs

See merge request !9303

Add active_when helper

Closes #24036

See merge request !9166

Seed abuse reports

See merge request !9234

Resolve "Horizontal scrolling issue on long project names"

Closes #28262

See merge request !9301

Move babel config for instanbul to karma config

See merge request !9286

Only run timeago loops after rendering timeago components

Closes #28247

See merge request !9267

Fix positioning of top scroll button

Closes #28253

See merge request !9276

override favicon for development to find tabs more easily

See merge request !9260

Fix a number of race conditions that can occur during namespace deletion

See merge request !9294

don't trigger tanuki loader when downloading files

See merge request !9290

add space between ci text and commit sha in Merge Request widget

Closes #27986

See merge request !9308

Fix import webhooks performance issue

Closes #27958

See merge request !9197

Paginate environments bundle

Closes #25499

See merge request !9302

Fix error in MR widget after /merge slash command

Closes #28176

See merge request !9259

flex parent was pushing elements together

Do not use single quote in headings as it breaks docs.gitlab.com

Closes #25539

See merge request !9307

[ci skip]

Update services templates docs

Closes gitlab-ee#1361

See merge request !9305

[ci skip]

[ci skip]

Integrate with new environments API

See merge request !8954

[ci skip]

Add pagination to environments table

See merge request !9090

Merge branch 'fe-paginated-environments-api-add-subview' into 'fe-paginated-environments-api-add-pagination'

Adds sub view to list environments under a folder

See merge request !9169

Reduce query count for snippet search

See merge request !9254