Merge branch 'master' of github.com:metabase/metabase into drill-polish

bin/ci

docs/administration-guide/01-managing-databases.md

docs/administration-guide/03-setting-up-email.md

docs/operations-guide/start.md

frontend/src/metabase/admin/permissions/selectors.js

frontend/src/metabase/app-main.js

frontend/src/metabase/app.js

frontend/src/metabase/components/DatabaseDetailsForm.jsx

frontend/src/metabase/components/EditBar.jsx

frontend/src/metabase/components/HeaderBar.jsx

frontend/src/metabase/components/HistoryModal.jsx

frontend/src/metabase/components/LoadingAndErrorWrapper.jsx

frontend/src/metabase/components/Modal.jsx

frontend/src/metabase/components/ModalContent.css

frontend/src/metabase/components/ModalContent.jsx

frontend/src/metabase/components/icons/NightModeIcon.jsx

frontend/src/metabase/css/components/modal.css

frontend/src/metabase/css/core/base.css

frontend/src/metabase/css/core/flex.css

frontend/src/metabase/css/core/inputs.css