Fix dependency updates and creating versions with no game versions/loaders (#280)

src/database/models/version_item.rs

@@ -191,10 +191,9 @@ impl VersionBuilder {
             "
             SELECT d.id id
             FROM versions v
-            INNER JOIN dependencies d ON d.dependent_id = v.id
+            INNER JOIN dependencies d ON d.mod_dependency_id = $1
             INNER JOIN game_versions_versions gvv ON gvv.joining_version_id = v.id AND gvv.game_version_id = ANY($2)
             INNER JOIN loaders_versions lv ON lv.version_id = v.id AND lv.loader_id = ANY($3)
-            WHERE v.mod_id = $1
             ",
             self.project_id as ProjectId,
             &self.game_versions.iter().map(|x| x.0).collect::<Vec<i32>>(),