Add a setting for disabling notifications

[BitiTiger]

I would like to propose a new feature. The feature would be a setting for disabling all notifications. This can be implemented through a config file, a check box/switch on the server screen or on the main chat window.

[whereswaldon]

This is definitely a setting that needs to exist! I've copied this over to our project issue tracker and we can continue the conversation there! Thank you for submitting this!