It could happen if there are bugs in the cloud, e.g. if they strip special characters somewhere.
We'd want to know it if they do. But we also don't want Cura to crash if the remote connection is not reliable, or if there's changes/bugs in the future.
Fixes Sentry issue CURA-42F.
Had to implement this a bit differently as stated in the ticket. This field is returned when uploading the project file.
Logic needed a bit of a change as the new behavior dictates a sequence (we can only upload the print file after the project file is uploaded, and we know the correct `file_id`/`source_file_id`) where before these two api calls were done in parallel.
CURA-8555
