Make notifications optional

[stamminator]

It would be nice if Caesium's settings allowed the Windows notification which occurs upon successful compression to be optional. For me, it's just extra clutter in my notifications area. Here's a concept I threw together.

The "show if longer than" option idea comes from SQL Server Management Studio, where you'll only get a notification upon completion of a very long-running query.

[Lymphatus]

That's a good idea, I will think of a way to implement it.