refactor(quark): port report_content & code clean-up

#283

crates/delta/src/routes/servers/roles_delete.rs

@@ -22,7 +22,7 @@ pub async fn delete(
     let mut query = DatabasePermissionQuery::new(db, &user).server(&server);
     calculate_server_permissions(&mut query)
         .await
-        .throw_if_lacking_channel_permission(ChannelPermission::ManageRole);
+        .throw_if_lacking_channel_permission(ChannelPermission::ManageRole)?;
 
     let member_rank = query.get_member_rank().unwrap_or(i64::MIN);