Open Controller 0.4.0

Controllers look like themselves. The window draws each one in its own shape, with its controls
where the real one has them: the DualSense with its touchpad and light strips, the DualShock 4,
the Xbox and Switch Pro controllers, Joy-Cons, the 8BitDo Ultimate with its star and the 8BitDo
SN30 Pro, among others. The icons are drawn instead of taken from a Windows font, so they show
on Linux and macOS too. Settings from 0.3.0 carry over.

Its "Update now" button does not install the next version; 0.4.1 fixes that.