Merge remote-tracking branch 'origin/master' into zj-mattermost-slash-config

GITLAB_WORKHORSE_VERSION

...ts/javascripts/environments/components/environment.js.es6

...vascripts/environments/components/environment_item.js.es6

...nvironments/components/environment_terminal_button.js.es6

app/assets/javascripts/terminal/terminal.js.es6

app/assets/javascripts/terminal/terminal_bundle.js.es6

app/assets/stylesheets/framework/avatar.scss

app/assets/stylesheets/framework/buttons.scss

app/assets/stylesheets/pages/pipelines.scss

app/assets/stylesheets/pages/projects.scss

app/controllers/application_controller.rb

app/controllers/import/gitea_controller.rb

app/controllers/import/github_controller.rb

app/controllers/projects/environments_controller.rb

app/helpers/import_helper.rb

app/models/concerns/milestoneish.rb

app/models/concerns/reactive_caching.rb

app/models/environment.rb

app/models/global_milestone.rb

app/models/milestone.rb