Quickly Turn off Copilot - i.e. When Learning

I frequently find myself toggling copilot on/off, i.e. when I want to learn something I don't want it spoiling everything for me. So, I setup a keyboard shortcut (F12) and a streamdeck button to quickly toggle back and forth. No need to type `:Copilot disable/enable` every time I wanna switch it on/off.