Add support for mouse buttons 1 through 5

[mendess]

Add support for right click, middle click, left click, scroll up and scroll down.

This is the only thing stopping me from using this over polybar 😅

I can try and implement it myself after exams if someone points me to the part of the code I should probably look into first, like where are the mouse events handled right now.

[mendess]

I'm dumb and didn't read the readme carefully enough.