Expand list of all Tracks with Export-Status

[mega-stoffel]

Is your feature request related to a problem? Please describe. It happens more often in the last time, that the app can't export the track after stopping it. I guess it has something to do with a changing or lost network in combination with my nextcloud.

Describe the solution you'd like Therefore I'd like to have a visualization on the list of all tracks, if the export was successful - or if it failed.

Describe alternatives you've considered The best would be, that all exports finish successful - but I'm afraid that's way harder to realize. ;-)

Additional context If I can see failed track exports in the list of all tracks, I can just restart the track and hope, that it will export successful after this restart (which indeed works pretty often).