How to change First Name & Last Name in Login Popup

To change First Name & Last Name in Login Popup, from this.

To something like this

#1. First, you need to install this code to Code Injection > Footer

#2. Next, use this code under #1 code

<script>
  window.twc = ((self) => self)(window.twc || {});
  twc.calidc = ((self) => self)(twc.calidc || {});
  twc.calidc.callbacks = twc.calidc.callbacks || [];
  twc.calidc.callbacks.push(function (dcmnt, dialogType) {
    if (dialogType === 'sign-up' || dialogType === 'sign-up-member-site') {
      const first = dcmnt.querySelector('input[type="text"][data-test="create-account-first-name"]');
      const last  = dcmnt.querySelector('input[type="text"][data-test="create-account-last-name"]');
      if (first) first.placeholder = 'First';
      if (last)  last.placeholder  = 'Last';
    }
  });
</script>

#3. You can change text here.