Redesigned the PCB and added an RGB button

I had made some mistakes when connecting the relay. I forgot to add a diode and also connected the wrong pins of the relay. I also added an RGB button to mute the doorbell and maybe also do some other things, like change the bell sound or indicate the status of the device. There is a bit of a problem, I need to find a way to slice up this print so it can actually be printed. I think I am going to make the backplate removable and secured by screws taped into heatinserts of the main case.