Changes to cope with separating HTML players and covers

Like this? https://jsfiddle.net/6r0s9qv2/

  function findPlayers() {
    const allCovers = document.querySelectorAll(".cover");
    const allWrappers = document.querySelectorAll(".wrap");
    allWrappers.forEach(function addToPlayers(cover, index) {
      players.push({});
    });
  }