Refactor talk-plugin-auth part 1

plugins/talk-plugin-auth/client/stream/containers/SignInButton.js

@@ -0,0 +1,13 @@
+import { connect } from 'react-redux';
+import { bindActionCreators } from 'redux';
+import { showSignInDialog } from 'coral-embed-stream/src/actions/login';
+import SignInButton from '../components//SignInButton';
+
+const mapStateToProps = ({ auth }) => ({
+  currentUser: auth.user,
+});
+
+const mapDispatchToProps = dispatch =>
+  bindActionCreators({ showSignInDialog }, dispatch);
+
+export default connect(mapStateToProps, mapDispatchToProps)(SignInButton);