Restore vanilla components

app/javascript/mastodon/features/ui/containers/modal_container.js

@@ -0,0 +1,16 @@
+import { connect } from 'react-redux';
+import { closeModal } from '../../../actions/modal';
+import ModalRoot from '../components/modal_root';
+
+const mapStateToProps = state => ({
+  type: state.get('modal').modalType,
+  props: state.get('modal').modalProps,
+});
+
+const mapDispatchToProps = dispatch => ({
+  onClose () {
+    dispatch(closeModal());
+  },
+});
+
+export default connect(mapStateToProps, mapDispatchToProps)(ModalRoot);