Trying to restart through the UI can fail if state manager is completely borked

[markspolakovs]

2024-12-04 22:12:11,896  | [1113] [ERROR] Exception occurred while handling uri: 'http://studio1.ury.york.ac.uk:13500/restart'
Traceback (most recent call last):
  File "handle_request", line 100, in handle_request
  File "web_server.py", line 518, in restart
TypeError: 'NoneType' object is not subscriptable

BAPSicle/web_server.py

Lines 515 to 520 in 85f54d9

	if request.args.get("confirm", '') != "true":
	for i in range(server_state.get()["num_channels"]):
	state = status(i)
	if state["playing"]:
	return render_template("restart-confirm.html", data=None)
	server_state.update("running_state", "restarting")

Probably need some defensive checks there