Function writeLayout

public/js/dragAndDrop.js:52–54

(layout)

  catch (e) { return {}; }
}
function writeLayout(layout) {
  localStorage.setItem(LAYOUT_KEY, JSON.stringify(layout || {}));
}
function setLayoutFor(cardId, zoneId) {
  const layout = readLayout();
  const prevZone = layout[cardId];