Mild progress for &send-files. Started mocking up the GUI and detailing how the discovery and encryption will work, which is a bit complicated

I'm writing it in Odin, so I am using microui. But realizing its too limited for what I need, so gonna need to switch to dear Imgui, which is always more painful than I expect to set up. Fingers crossed that's not the only thing I'll be able to do tomorrow. Getting the feeling I am biting a bit more off than I can chew lol.