chat: do not always show the input field

[strukturart]

It is not necessary to display the input field if you do not want to write. it would suffice to show a bottom bar, where you could start writing with softLeft and softRigth to display options for a message.

  //bottom bar
  let bottom_bar = function (left, center, right) {
    document.querySelector("div#bottom-bar div#button-left").textContent = left;
    document.querySelector("div#bottom-bar div#button-center").textContent =
      center;
    document.querySelector("div#bottom-bar div#button-right").textContent =
      right;

    if (left == "" && center == "" && right == "") {
      document.querySelector("div#bottom-bar").style.display = "none";
    } else {
      document.querySelector("div#bottom-bar").style.display = "block";
    }
  };

[farooqkz]

What do others think?