Styling adjustments to timeline notifications

ts/components/conversation/LinkNotification.tsx

@@ -0,0 +1,13 @@
+// Copyright 2021 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import * as React from 'react';
+
+import { SystemMessage } from './SystemMessage';
+import type { LocalizerType } from '../../types/Util';
+
+export const LinkNotification = ({
+  i18n,
+}: Readonly<{ i18n: LocalizerType }>): JSX.Element => (
+  <SystemMessage icon="unsynced" contents={i18n('messageHistoryUnsynced')} />
+);