title: compare only dates with luxon Datetime
body: <p>I have two luxon objects, </p>
  
  <pre><code>let startDate = DateTime.fromISO(startDate)
  let someDate = DateTime.fromISO(someDate)
  </code></pre>
  
  <p>How can I compare if someDate is &lt;= startDate, only the dates, without the time?</p>