Download MODX doesn't use custom paths

[Mark-H]

Summary

Upgrading advanced installation just dumps files in the root: https://github.com/modmore/Gitify/blob/master/src/Mixins/DownloadModx.php#L84

https://secure.helpscout.net/conversation/1566734485/28644/

Step to reproduce

Attempt upgrading an advanced installation

Observed behavior

Note core/manager/connectors directories in the root

Expected behavior

Should follow the MODX config

Environment

Gitify version, MODX version, Operating System, MySQL version, PHP version, etc.