Linux & Main

Mostly polishing release to fix remaining problems after big changes.

- Add support for Switch SNES and NES online controllers (lost at some point).

- Support for XBox Series S/X controller.

- Additional link to certificate (to fix some apps/python modules)

- input: default mapping to gamepad if it's not configured yet. Don't relay on default map anyway. It's minimal to be able to go to map settings and define more specific buttons mapping.

- Bluetooth: faster pairing if device wasn't paired before.