Top navigation redesign

Closes #34022, #34035, #34037, #34038, and #34021

See merge request !12214

Bump premailer-rails gem to 1.9.7 and its dependencies to prevent network retrieval of assets

Closes #34231

See merge request !12456

Add explicit message when no runners on admin

Closes #33846

See merge request !12266

Truncate long job names in environment view; wrap author to next line

Closes #34320

See merge request !12455

Replace 'dashboard/merge_requests' spinach with rspec

See merge request !12440

Fix endpoint not being update correctly

Closes #33546

See merge request !12449

Fix bug where Service `created_at` time was used instead of deployment time.

Closes #33933

See merge request !12395

Update GITLAB_SHELL_VERSION to 5.0.6

See merge request !12450

Since asset compilation was disabled in GitLab 9.3, the premailer-rails gem
would fall back to fetching assets via HTTP(s) since the Sidekiq working
directory was not the Rails root. In some instances, SSL verification would
fail, preventing e-mails from being sent.

premailer-rails 1.9.7 has a fix
(https://github.com/fphilipe/premailer-rails/pull/195) that uses an absolute
directory to load assets from the filesystem so that the assets can be fetched
locally instead of over the network.

Closes #34231

Backport from EE: Introduce #renew for ExclusiveLease

See merge request !12436

Backport from EE: Fixed DestroyService spec to actually test if removal was successful

See merge request !12437

Hint about the wiki page hook actions (doc)

Closes #34242

See merge request !12427

Remove bin/ci/upgrade.rb

Closes #34207

See merge request !12414

Fix click not being able to find the current element to use trigger('click') instead

Closes #34302

See merge request !12447

Drop GFM support for issuable title on milestone

Closes #34289

See merge request !12444

Change composer update to install to follow PHP/composer best practice

See merge request !12400

Revert "Annotate" to "Blame"

See merge request !12401

Suppress Vue tips when running Karma

See merge request !12379

Add additional user and email services

See merge request !12125

Replace 'profile/notifications.feature' spinach test with an rspec analog

See merge request !12345

Fix pipeline status when allowed to fail jobs present

Closes #29059

See merge request !11166

Fixes ctrl+enter not submit issue edit form

Closes #33758

See merge request !12422

Use grpc 1.4.0

Closes omnibus-gitlab#2414

See merge request !12387

Improve performance for pipeline charts

Closes #32407

See merge request !12378

Show group name instead of path on group page

See merge request !12391

Perform project housekeeping after importing projects

Closes #34019

See merge request !12323

Add support for multiple tooltips in the same Vue component

Closes #33223

See merge request !11954

This is not ammended to another commit as it will probably have failing
tests which I'll fix and amend to this commit.

Resolve "Replace 'Settings ➔ CI/CD Pipelines' with 'Settings ➔ Pipelines' in docs"

Closes #34264

See merge request !12433

Fix interpolation in app/views/profile/show.html/haml

See merge request !12439

Closes #33758