Fix logged-out web UI on smaller screens (#19263)

app/javascript/mastodon/features/about/index.js

@@ -0,0 +1,34 @@
+import React from 'react';
+import { defineMessages, injectIntl } from 'react-intl';
+import PropTypes from 'prop-types';
+import Column from 'mastodon/components/column';
+import LinkFooter from 'mastodon/features/ui/components/link_footer';
+import { Helmet } from 'react-helmet';
+import { title } from 'mastodon/initial_state';
+
+const messages = defineMessages({
+  title: { id: 'column.about', defaultMessage: 'About' },
+});
+
+export default @injectIntl
+class About extends React.PureComponent {
+
+  static propTypes = {
+    intl: PropTypes.object.isRequired,
+  };
+
+  render () {
+    const { intl } = this.props;
+
+    return (
+      <Column>
+        <LinkFooter />
+
+        <Helmet>
+          <title>{intl.formatMessage(messages.title)} - {title}</title>
+        </Helmet>
+      </Column>
+    );
+  }
+
+}