Suggested improvements to the notification function

- I would like to be able to change notification settings for each folder at once.
- Enable easier one-click mute on/off of notifications
- Allow users to pre-configure notification settings when joining a new server and apply them automatically.

The reason for submitting these suggestions is that as the number of servers we join increases, the volume of notifications will become so large that we will likely miss the notifications we really want.
Trying to change these settings after the number of servers has increased forces a rather cumbersome and time-consuming process with the current UI. This is a real pain and I would like to see something done about it.