function render_access_key(label) {
	return `<span style="white-space: pre">${AccessKeys.toHTML(label)}</span>`;
}
Wrapper for AccessKeys.toHTML that ensures whitespace isn't collapsed in cases like "Fox &Trot" or "Fo&x Trot" where the access key abuts a space.

(Actually a simple `<span>` may be enough (since it's an inline element?), but `white-space: pre` is more explicit.)

@param {string} label  text with an access key denoted by an ampersand (can escape with double ampersand)
@returns {string}  HTML for label with access key underlined