Merge pull request #5883 from metabase/buttons-for-rescanning-values

...se/admin/datamodel/components/database/MetadataHeader.jsx

...tend/src/metabase/admin/datamodel/containers/FieldApp.jsx

.../metabase/admin/datamodel/containers/TableSettingsApp.jsx

frontend/src/metabase/admin/datamodel/field.js

frontend/src/metabase/admin/datamodel/table.js

frontend/src/metabase/routes.jsx

frontend/src/metabase/services.js

src/metabase/api/field.clj

src/metabase/api/table.clj

src/metabase/db/metadata_queries.clj

src/metabase/models/field_values.clj