BUG: a-Shell causes errors when a web request is made while the app is in background

a-Shell causes errors when a web request is made while the app is in background.
This is an example error using the Dropbox official python script to upload files, but this happens with all scripts I tried, including OneDrive:

```
Traceback (most recent call last):
File "/private/var/mobile/Containers/Data/Application/E80C2799-69DB-4A65-B18C-5CF286BF5E33/Documents/Downloads/dropbox_upload.py", line 699, in upload_file
dbx.files_upload_session_append_v2(f.read(self.chunk), cursor)
File "/var/mobile/Containers/Data/Application/B2793D14-9179-4631-AC2A-8F6861004E83/Library/lib/python3.11/site-packages/dropbox/base.py", line 3257, in files_upload_session_append_v2
r = self.request(
^^^^^^^^^^^^^
File "/var/mobile/Containers/Data/Application/B2793D14-9179-4631-AC2A-8F6861004E83/Library/lib/python3.11/site-packages/dropbox/dropbox_client.py", line 326, in request
res = self.request_json_string_with_retry(host,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/var/mobile/Containers/Data/Application/B2793D14-9179-4631-AC2A-8F6861004E83/Library/lib/python3.11/site-packages/dropbox/dropbox_client.py", line 476, in request_json_string_with_retry
return self.request_json_string(host,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/var/mobile/Containers/Data/Application/B2793D14-9179-4631-AC2A-8F6861004E83/Library/lib/python3.11/site-packages/dropbox/dropbox_client.py", line 589, in request_json_string
r = self._session.post(url,
^^^^^^^^^^^^^^^^^^^^^^^
File "/var/mobile/Containers/Data/Application/B2793D14-9179-4631-AC2A-8F6861004E83/Library/lib/python3.11/site-packages/requests/sessions.py", line 635, in post
return self.request("POST", url, data=data, json=json, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/var/mobile/Containers/Data/Application/B2793D14-9179-4631-AC2A-8F6861004E83/Library/lib/python3.11/site-packages/requests/sessions.py", line 587, in request
resp = self.send(prep, **send_kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

File "/var/mobile/Containers/Data/Application/B2793D14-9179-4631-AC2A-8F6861004E83/Library/lib/pyth
on3.11/site-packages/requests/sessions.py", line 701, in send
r = adapter.send(request, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/var/mobile/Containers/Data/Application/B2793D14-9179-4631-AC2A-8F6861004E83/Library/lib/pyth
on3.11/site-packages/requests/adapters.py", line 547, in send
raise ConnectionError(err, request=request)
requests.exceptions.ConnectionError: ('Connection aborted.', TimeoutError('The write operation timed
out'))
```

If a-Shell is not sent in background, but stays in foreground, no error occurs.