Download all translations in a specified file format

### Describe the problem

Right now - if you download the Zip of translations, you're always given the file format that is set up for the component.
If you want the translations in a different file format (say, PO instead of XLIFF) you have to download component per component.
Seems like an oversight and small fix.

### Solution brainstorm

The API allows you to request a different file format: https://hosted.weblate.org/api/projects//file/?format=zip:po
Would be good to have a drop down or similar to change the download format so you could download the entire project in whatever format you'd prefer, since the endpoint already exists seems like a small lift.

### Describe alternatives you have considered

Doing it by hand, but gets pretty slow when you have multiple componentes and languages.

### Screenshots

_No response_

### Additional context

_No response_