Local Environment: Run zip downloads through a data pipe

[sejas]

As suggested in #188 (comment)
Let's data pipe the downloads using ReadableStream to download and unzip at the same time.
This will save some seconds to the final user and this process will be reusable in multiple parts of the app.

Done is:

• We changed the logic to data pipe the download and unzip process
• Avoid the zip deletion, because it wasn't written into disk.