Requested by a beta tester nearly four years ago: '$' is both an
inventory "letter" and a group accelator. The letter only works
if gold is on the current menu page and was taking precedence
over the group accelator. Allow '$' to toggle selection of gold
regardless of the page.
curses already behaves this way. X11 and Qt menus aren't
paginated so also pick gold even if the '$' entry in the menu
isn't visible at the time. No idea about Windows GUI...
efea46a93d