Use keyboard API to detect the layout

[mattgodbolt]

See https://developer.mozilla.org/en-US/docs/Web/API/Navigator/keyboard

can improve

jsbeeb/utils.js

Lines 379 to 391 in c0735c2

	function detectKeyboardLayout() {
	if (exports.runningInNode) {
	return "UK";
	}
	if (localStorage.keyboardLayout) {
	return localStorage.keyboardLayout === "US" ? "US" : "UK";
	}
	if (navigator.language) {
	if (navigator.language.toLowerCase() === "en-gb") return "UK";
	if (navigator.language.toLowerCase() === "en-us") return "US";
	}
	return "UK"; // Default guess of UK
	}

with this

[mattgodbolt]

It really doesn't seem that the keyboard API is well supported, and even if it was it doesn't seem obvious that the KeyboardLayoutMap would be the solution to this. Going to close.