Merge branch '229532-status-page-publish-column' into 'master'

...ssets/javascripts/incidents/components/incidents_list.vue

app/assets/javascripts/incidents/constants.js

...pts/incidents/graphql/queries/get_incidents.query.graphql

app/assets/javascripts/incidents/list.js

app/assets/stylesheets/pages/incident_management_list.scss

app/helpers/projects/incidents_helper.rb

doc/api/graphql/reference/gitlab_schema.graphql

doc/api/graphql/reference/gitlab_schema.json

doc/api/graphql/reference/index.md

...ssets/javascripts/incidents/components/published_cell.vue

ee/app/graphql/ee/types/issue_type.rb

ee/app/helpers/ee/projects/incidents_helper.rb

...angelogs/unreleased/229532-status-page-publish-column.yml

ee/spec/frontend/incidents/components/published_cell_spec.js

ee/spec/helpers/ee/projects/incidents_helper_spec.rb

locale/gitlab.pot

spec/frontend/incidents/components/incidents_list_spec.js