Slim Slider for OTF Fidget knife

Note 22.05.24: Added the stronger spring versions to also have the Slimmer Slider, but i have not printed or tested how much force or how easy it is to slide as there is less surface to push the OTF knife/comb open. This modification is just for the slider, making it slimmer to be flush with the frame, however, this makes it so that you need to put extra force to slide it. So it's not designed to be opened and closed repeatedly as it will fatigue your thumb. It's more for its aesthetic