Resolve "Lock issue and merge request"

Closes #18608

See merge request gitlab-org/gitlab-ce!14531

Add delete issue docs

See merge request gitlab-org/gitlab-ce!14721

Fixed the navbar title hover style being applied outside the navbar

See merge request gitlab-org/gitlab-ce!14707

Replace the 'project/merge_requests.feature' spinach test with an rspec analog

See merge request gitlab-org/gitlab-ce!14621

Adjust tooltips to adhere to 8px grid and make them more readable

See merge request gitlab-org/gitlab-ce!14380

Send API parameters as extra data for sentry errors

See merge request gitlab-org/gitlab-ce!14644

Prevent branches or tags from starting with invalid characters (e.g. -, .)

Closes #38817

See merge request gitlab-org/gitlab-ce!14710

Add support for GPG subkeys in signature verification

Closes #36829

See merge request gitlab-org/gitlab-ce!14517

Fix flaky examples tracking

See merge request gitlab-org/gitlab-ce!14681

Fix the ee_compat_check task for forks

Closes #38846

See merge request gitlab-org/gitlab-ce!14727

Update required Workhorse version to v3.2.0

See merge request gitlab-org/gitlab-ce!14715

Resolve "Skip loading English Frontend Translation File"

Closes #38845

See merge request gitlab-org/gitlab-ce!14722

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

Fix project snippets breadcrumb link

Closes #38696

See merge request gitlab-org/gitlab-ce!14646

Update Ruby to 2.3.5 in installation and update guides

See merge request gitlab-org/gitlab-ce!14725

Move to CE some EE pipelines-related code that belongs to CE

Closes gitlab-ee#3616

See merge request gitlab-org/gitlab-ce!14699

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

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

Fix typo in cycle analytics breaking time component

See merge request gitlab-org/gitlab-ce!14723

Upgrade doorkeeper-openid_connect

See merge request gitlab-org/gitlab-ce!14372

Document how to use pgloader

Closes gitlab-ee#2799

See merge request gitlab-org/gitlab-ce!13109

Made the insertion of the English Translation File conditional + removed window.translations from the global object to save some memory

Resolve "Monitoring graph axes labels are inaccurate and inconsistent"

Closes #37105

See merge request gitlab-org/gitlab-ce!14258

Resolve "Protected branch selector not found in test"

Closes #38835

See merge request gitlab-org/gitlab-ce!14719

Allow merge when no pipeline success

Closes #38389

See merge request gitlab-org/gitlab-ce!14633

Closes #38817

Added popover paradigm to ux guide

Closes gitlab-design#45 and gitlab-design#36

See merge request gitlab-org/gitlab-ce!14552