Jellyfin API requests errors not displayed and not logged

[tomrss]

Hello, thanks for this project.

This is not a report for a real bug, more of a behavior that makes troubleshooting very uncomfortable.

Errors in API requests are not displayed in the GUI and not logged:

jellycon/resources/lib/jellyfin.py

Lines 40 to 55 in e84c0c9

	r = requests.get(url, headers=self.headers, verify=self.verify_cert)
	try:
	try:
	'''
	The requests library defaults to using simplejson to handle
	json decoding. On low power devices and using Py3, this is
	significantly slower than the builtin json library. Skip that
	and just parse the json ourselves. Fall back to using
	requests/simplejson if there's a parsing error.
	'''
	r.raise_for_status()
	response_data = json.loads(r.text)
	except ValueError:
	response_data = r.json()
	except: # noqa
	response_data = {}

(example for GET, but this is true also for POST and DELETE).

I think some reporting about the error (like a popup in the GUI or even a simple log) would be extremely useful.

If you also think this is useful, I will be happy to provide a PR for that.