Anoying mode

[primeapple]

Hi, first of all, i am super happy about this project! I already reviewed the code and I like it a lot. (Already added a small feature, but you will see it later :))

What I really want is an anoying mode. Right now, when the timer passes, it does make a sound and gives a notification, but that's all. So most of the time I hear the sound, but then completly forget it and continue my work. So how about adding a feature, that the sound will continue ringing, as long as you didn't pressed a button (or the notification, or whatever...)

I will try to contribute to it!