one-some

Upload methods aren't consistent in what files they accept, and usually don't have any error handling in the event of receiving a file it cant understand, ie drag and drop...

Old presets cause errors in model loading

1

Per Rip_gel on discord: ``` File "B:\python\lib\site-packages\socketio\server.py", line 730, in _handle_event_internal r = server._trigger_event(data[0], namespace, sid, *data[1:]) │ │ │ │ │ └ ['load_model', {'model': 'NeoCustom', 'path': 'D:\\KoboldAI\\models\\gpt-neo-2.7B-Picard', 'use_gpu': True,...