update footer and allow 32 char shortcode

docker-compose.yml

···
-version: '3.8'
 services:
   db:
     image: postgres:15-alpine

frontend/src/components/Footer.tsx

···
                         </Button>
 
                         <Button variant="ghost" size="icon">
-                            <a href="https://l.nekomimi.pet/twitter?source=shortener" target="_blank" rel="noopener noreferrer">
+                            <a href="https://l.nekomimi.pet/bsky?source=shortener" target="_blank" rel="noopener noreferrer">
                                 <SiBluesky className="h-4 w-4" />
                             </a>
                             <span className="sr-only">Twitter</span>

src/handlers.rs

···
     use uuid::Uuid;
 
     let uuid = Uuid::new_v4();
-    encode(uuid.as_u128() as u64).chars().take(8).collect()
+    encode(uuid.as_u128() as u64).chars().take(32).collect()
 }
 
 pub async fn register(