website: Use Docusaurus Frontmatter for badges (#12893)

website/docs: Reduce redundant usage of badges. Move badge logic to components.

- Fix JSX class name warning.
- Remove duplicate titles.
- Flesh out `support_level` frontmatter.

website/integrations/services/sonarr/index.md

@@ -1,12 +1,9 @@
 ---
 title: Integrate with Sonarr
 sidebar_label: Sonarr
+support_level: community
 ---
 
-# Integrate with Sonarr
-
-<span class="badge badge--secondary">Support level: Community</span>
-
 :::note
 These instructions apply to all projects in the \*arr Family. If you use multiple of these projects, you can assign them to the same Outpost.
 :::