message: fix keyboard nav on releases pages
diff: if (ev.ctrlKey || ev.altKey || ev.metaKey || document.activeElement.tagName === "INPUT") {
  return;
  }
  - if (ev.which === 38) { // Down arrow
  + if (ev.which === 40) { // Down arrow
  if (active === null) {
  active = document.getElementsByClassName("recent-releases-container")[0].getElementsByTagName("li")[0];
  } else if (active.nextElementSibling) {
  active = active.nextElementSibling;
  }
  active.classList.add("selected");
  - } else if (ev.which === 40) { // Up arrow
  + } else if (ev.which === 38) { // Up arrow
  if (active === null) {
  active = document.getElementsByClassName("recent-releases-container")[0].getElementsByTagName("li")[0];
  } else if (active.previousElementSibling) {
  