docs: add troubleshooting to additional resource on homepage (supabase#39458)

* docs: add troubleshooting to additional resource on homepage

* fix: not external link and add trailing comma

---------

Co-authored-by: Chris Chinchilla <[email protected]>

Author: aantti

apps/docs/app/page.tsx

@@ -194,6 +194,12 @@ const additionalResources = [
     href: 'https://supabase.com/ui',
     external: true,
   },
+  {
+    title: 'Troubleshooting',
+    description: 'Our troubleshooting guide for solutions to common Supabase issues.',
+    icon: 'troubleshooting',
+    href: '/guides/troubleshooting',
+  },
 ]
 
 const HomePage = () => (