feat: channel model implementation (#250)

Co-authored-by: ToastXC <100072983+toastxc@users.noreply.github.com>

crates/delta/src/routes/webhooks/webhook_delete.rs

@@ -1,4 +1,4 @@
-use revolt_database::Database;
+use revolt_database::{util::reference::Reference, Database};
 use revolt_quark::{models::User, perms, Db, Error, Permission, Result};
 use rocket::State;
 use rocket_empty::EmptyResponse;
@@ -12,13 +12,9 @@ pub async fn webhook_delete(
     db: &State<Database>,
     legacy_db: &Db,
     user: User,
-    webhook_id: String,
+    webhook_id: Reference,
 ) -> Result<EmptyResponse> {
-    let webhook = db
-        .fetch_webhook(&webhook_id)
-        .await
-        .map_err(Error::from_core)?;
-
+    let webhook = webhook_id.as_webhook(db).await.map_err(Error::from_core)?;
     let channel = legacy_db.fetch_channel(&webhook.channel_id).await?;
 
     perms(&user)