Start a download from the copyparty interface

NOTE:
**please use english, or include an english translation.** aside from that,
I want to download URLs directly from the copyparty interface.

**is your feature request related to a problem? Please describe.**
Not really a problem, but rather an annoyance in domestic download speeds

**Describe the idea / solution you'd like**
I want copyparty to download a file from the machine it is running on, to one of it 's volumes.

**Describe any alternatives you've considered**
Remote SSH connection and running a curl/wget in a screen

**Additional context**
I prefer to queue several downloads, specifically on a machine close to the source (due to my geolocation)