Support configuring notifications on a per-event basis

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### Feature description

If would like to be able to configure (or switch off) certain notifications (e.g. "Network unreachable"). At least on KDE (but I suppose on Linux in general) it is possible to configure notifications to your needs, I am taking advantage of it. The desktop client does not support it however, i can only turn on or off notifications in general, which is not good.


Notifications are generally a sensitive topic, and reducing unnecessary (which to some degree is also an individual thing) ones is important to reduce distractions.