Merge pull request #4123 from metabase/public-cards-and-dashboards-2.0

.gitignore

docs/api-documentation.md

frontend/src/metabase/App.jsx

...abase/admin/databases/components/CreatedDatabaseModal.jsx

.../admin/settings/components/widgets/PublicLinksListing.jsx

.../metabase/admin/settings/containers/SettingsEditorApp.jsx

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

frontend/src/metabase/app-main.js

frontend/src/metabase/app-public.js

frontend/src/metabase/app.js

frontend/src/metabase/components/CopyWidget.jsx

frontend/src/metabase/components/ExternalLink.jsx

frontend/src/metabase/components/Link.jsx

frontend/src/metabase/components/LogoIcon.jsx

frontend/src/metabase/components/Popover.jsx

frontend/src/metabase/components/Tooltip.jsx

frontend/src/metabase/css/core/headings.css

frontend/src/metabase/dashboard/components/DashCard.jsx

frontend/src/metabase/dashboard/components/Dashboard.jsx

frontend/src/metabase/dashboard/components/DashboardGrid.jsx