Function bevy_egui::systems::bevy_to_egui_key

pub fn bevy_to_egui_key(key: &Key) -> Option<Key>

Matches the implementation of https://github.com/emilk/egui/blob/68b3ef7f6badfe893d3bbb1f791b481069d807d9/crates/egui-winit/src/lib.rs#L1005.