Update submitting-themes.mdx

src/content/docs/en/community/submitting-themes.mdx

@@ -4,6 +4,7 @@ description: How to submit themes.
 ---
 import ImageComponent from "@components/ImageComponent.astro";
 import ThemedImage from '@components/ThemedImage.astro';
+import { Tabs, TabItem } from '@astrojs/starlight/components';
 
 Athena OS gives you the chance to propose your favourite rice and deploy it. This document explains how to prepare and propose your custom theme in order to be submitted for Athena OS.