Minor fixes to orderings and permission serialization (#102)

* Fix latest_version in search results

* Handle users with invalid permissions instead of skipping them

* Specify order of some queries, fix serialization of permissions

* Run sqlx prepare

src/database/models/version_item.rs

@@ -331,6 +331,7 @@ impl Version {
             "
             SELECT id FROM versions
             WHERE mod_id = $1
+            ORDER BY date_published ASC
             ",
             mod_id as ModId,
         )