Macro to make "permanent" walls from DD's created walls?

[mcglincy]

i.e., remove the dungeon-draw / dungeonVersion flag.

Could be based on this:

const wallIdsToDelete = () => {
  const walls = canvas.scene.getEmbeddedCollection("Wall");
  const ids = [];
  for (const wall of walls) {
    const flag = wall.getFlag(constants.MODULE_NAME, "dungeonVersion");
    if (flag) {
      ids.push(wall.id);
    }
  }
  return ids;
};