Improve 'spec/features/profiles/*' specs

Closes #37855 et #37856

See merge request gitlab-org/gitlab-ce!14317

Replace the 'search.feature' spinach test with an rspec analog

See merge request gitlab-org/gitlab-ce!14248

Clean up redirect routes that conflict with regular routes

Closes #36229

See merge request gitlab-org/gitlab-ce!13783

IssueNotes: Fix role badge styling.

See merge request gitlab-org/gitlab-ce!14279

Remove gaps under nav on build page

Closes #37857

See merge request gitlab-org/gitlab-ce!14283

Change Pipelines to CI/CD for Settings page

See merge request gitlab-org/gitlab-ce!14168

# Conflicts:
#   doc/ci/variables/README.md

Add Security Concerns section to reply by email documentation

[ci skip]

See merge request gitlab/gitlabhq!2191

Fixed the new sidebars width when browser has scrollbars

Closes #37606

See merge request gitlab-org/gitlab-ce!14191

Fix project feature being deleted when updating project with invalid visibility level

Closes #37640

See merge request gitlab-org/gitlab-ce!14234

Ensure we use `Entities::User` for non-admin `users/:id` API requests

See merge request gitlab-org/gitlab-ce!14314

# Conflicts:
#   db/schema.rb

Use grpc 1.6.0

See merge request gitlab-org/gitlab-ce!14262

Fix setting share_with_group_lock

Closes #37916

See merge request gitlab-org/gitlab-ce!14300

Prior to this commit running
Namespace#force_share_with_group_lock_on_descendants would result in
updating _all_ namespaces in the namespaces table, not just the
descendants. This is the result of ActiveRecord::Relation#update_all not
taking into account the CTE. To work around this we use the CTE query as
a sub-query instead of directly calling #update_all.

To prevent this from happening the relations returned by
Gitlab::GroupHierarchy are now marked as read-only, resulting in an
error being raised when methods such as #update_all are used.

Fortunately on GitLab.com our statement timeouts appear to have
prevented this query from actually doing any damage other than causing
a very large amount of dead tuples.

Fixes https://gitlab.com/gitlab-org/gitlab-ce/issues/37916

created services for keys

See merge request gitlab-org/gitlab-ce!13331

Make the labels in the Compare form less confusing

Closes #21331

See merge request gitlab-org/gitlab-ce!14225

SQL performance improvements for ProjectsController#show

See merge request gitlab-org/gitlab-ce!14226

Display whether branch has been merged when deleting protected branch

Closes #32295

See merge request gitlab-org/gitlab-ce!14220

* Improve the descriptive text
* Rename "from" to "Target" and "to" to "Source"
* Swap "Target" and "Source" to have the same order as in MRs
* Reworded "Switch base of comparison" to "Swap versions"
Signed-off-by: Rémy Coutable <remy@rymai.me>

Remove title attribute from sidebar elements

See merge request gitlab-org/gitlab-ce!14140

Clarify what variables can be used under `environment:`

See merge request gitlab-org/gitlab-ce!14277

Resolve "Scope users by group inside dropdowns if I'm on group page (Issue, MRs)"

Closes #20824

See merge request gitlab-org/gitlab-ce!14249

Remove extra space between profile header and navbar

Closes #37844

See merge request gitlab-org/gitlab-ce!14275

Resolve "Typo in Protected Runners setting checkbox"

Closes #37886

See merge request gitlab-org/gitlab-ce!14284

add info about UX label to feature proposal to CONTRIBUTING.md

See merge request gitlab-org/gitlab-ce!14281

Minor improvements to prometheus docs

Closes #37896

See merge request gitlab-org/gitlab-ce!14288

…to stay within our query timeout of 60s. Also reduce the job interval to keep the same overall migration time of ~3.3 days.