Tests:
- Downloads successfully when everything goes right first time
- Downloads successfully when the 5th api call is successful after 4 failures
- Fails to download when 5 api calls fail in a row
- Fails to download if the file has already been added to `Download Station` (when `GetInfoAsync` does not error)
- FAils to download if `remotePath` cannot be parsed by `Path.GetDirectoryName()`
