* 5029-support-cluster-metrics-frontend:
  move ee-specific files into the ee namespace
  prefer classes over IDs
  prefer getElementById
  fix karma tests
  move cluster health monitoring behind an EEU feature flag
  remove prometheus panel styling on cluster monitoring page
  limit the size of the loading and unable-to-connect states for cluster monitoring
  add settings section wrapper to empty state
  lighten axis tick text
  add ability to override graph size measurements
  fix spacing around axis label text in small breakpoints
  remove unnecessary wrapper class
  hide legend without hiding the axis labels
  add option to hide the graph legend
  use proper dependency injection for monitoring dashboard component
  make deployments endpoint optional
  integrate prometheus graphs into cluster page (rough pass)
  add prometheus cluster health monitoring empty state

Merge remote-tracking branch 'gitlab-ce/5029-support-cluster-metrics-ce' into 5029-support-cluster-metrics

# Conflicts:
#	app/controllers/projects/prometheus/metrics_controller.rb
#	app/controllers/projects/prometheus_controller.rb
#	app/models/environment.rb
#	config/gitlab.yml.example
#	config/sidekiq_queues.yml
#	db/schema.rb
#	spec/controllers/projects/prometheus/metrics_controller_spec.rb
#	spec/models/environment_spec.rb
#	spec/models/project_services/prometheus_service_spec.rb

Removed service_desk webpack bundle tag

See merge request gitlab-org/gitlab-ee!4837

EE Port for Project and Groups Badges API

See merge request gitlab-org/gitlab-ee!4804

EE: Port Labels Select dropdown to Vue

See merge request gitlab-org/gitlab-ee!4834