feat: application preferences.

client/src/components/Preferences/PreferencesSidebarContainer.js

@@ -0,0 +1,21 @@
+import React from 'react';
+import classNames from 'classnames';
+import { Scrollbar } from 'react-scrollbars-custom';
+import { CLASSES } from 'common/classes';
+
+export default function PreferencesSidebarContainer({ children }) {
+  return (
+    <div
+      className={classNames(
+        CLASSES.PREFERENCES_PAGE_SIDEBAR,
+        CLASSES.PREFERENCES_SIDEBAR,
+      )}
+    >
+      <div class="preferences-sidebar__wrapper">
+        <Scrollbar noDefaultStyles={true}>
+          <div class="preferences-sidebar__inner">{children}</div>
+        </Scrollbar>
+      </div>
+    </div>
+  );
+}