Refactor FilterWidget to Filter component, use in automatic dashboard filters

frontend/src/metabase-lib/lib/metadata/Field.js

frontend/src/metabase/css/query_builder.css

...c/metabase/dashboard/containers/AutomaticDashboardApp.jsx

frontend/src/metabase/lib/schema_metadata.js

...c/metabase/query_builder/components/AggregationWidget.jsx

.../src/metabase/query_builder/components/BreakoutWidget.jsx

frontend/src/metabase/query_builder/components/Clearable.jsx

frontend/src/metabase/query_builder/components/FieldName.jsx

...end/src/metabase/query_builder/components/FieldWidget.jsx

frontend/src/metabase/query_builder/components/Filter.jsx

...etabase/query_builder/components/filters/FilterWidget.jsx