Fix Spinach and Capybara dependencies

Closes #30347

See merge request !10395

Closes #30347

20914 Limits line length for project home page

Closes #20914

See merge request !10346

Increase Capybara's timeout

Closes #30236

See merge request !10337

Prevent users from disconnecting gitlab account from CAS

Closes #25556

See merge request !10282

Add download attribute to download links

See merge request !10318

30276 Move issue, mr, todos next to profile dropdown in top nav

Closes #30276

See merge request !10347

Updating documentation to include a missing step in the update procedure

See merge request !10373

Fixed a gap underneath the scrolling inner page links

See merge request !10325

Refactor SearchController#show

Closes #28812

See merge request !9655

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

Remove unnecessary ORDER BY clause from `forked_to_project_id` subquery

See merge request !10334

Fix link to Jira service documentation

Closes #29929

See merge request !10366

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

Also disabled assets warming for Capybara/RSpec and remove a check to
skip assets warming when ./tmp/cache/assets/test exists because assets
are now served by webpack-dev-server.
Signed-off-by: Rémy Coutable <remy@rymai.me>

Add metrics button to Environment Overview page

Closes #29341

See merge request !10234

Update dpl CI example

Closes #3129

See merge request !9872

Eliminate unnecessary queries that add ~500 ms of load time for a large issue

See merge request !10365

fix issue #30083 handle parsing OpenBSD ps output properly to display sidekiq

Closes #30083

See merge request !10303

infos on admin->monitoring->background

Looking at the SQL log, we see useless queries such as:

```
D, [2017-03-22T03:25:00.726710 #2629] DEBUG -- :    (235.9ms)  SELECT MAX("project_authorizations"."access_level") AS maximum_access_level, "project_authorizations"."user_id" AS project_authorizations_user_id FROM "project_authorizations" WHERE "project_authorizations"."project_id" = 13083 AND 1=0 GROUP BY "project_authorizations"."user_id"  [["project_id", 13083]]
```

fix lint issues

Hide form inputs for group member without editing rights

Closes #24861

See merge request !7816

Allow users to import GitHub projects to subgroups

Closes #30289 and #30148

See merge request !10344

Fix the docs:check:links job

See merge request !10340

[ci skip]

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

Don't clean up the gitlab-test-fork_bare repo

Closes #30284

See merge request !10342

Adds container option for tooltip to prevent the button from losing round corners

Closes #29883

See merge request !10317

Support >1 path in Gitlab::Git::Repository#log

See merge request !10291

Added worksheets support to notebook viewer

See merge request !10307