Yes, there is capability for automatic file download tracking which seems to be set-up alright in your AppMeasurments.js. File downloads report stores the path of the file and it's being determined dynamically in your code. Hence, I believe we'll need to write some custom logic to streamline file downloads tracking.
Attached is the debugger screenshot. I am not seeing anything related to download, maybe that is the issue. Adobe analytics tracks download automatically we don't need to specify any specific settings in download button right?