Change Proximity facet radius dropdown option mi/km unit text

<?php
// Changes 'mi' to 'miles' in a Proximity facet's radius dropdown
add_action('facetwp_scripts', function () {
  ?>
  <script>
    (function($) {
      document.addEventListener('facetwp-loaded', function() {
        let radiusdropdown = document.querySelector('.facetwp-radius-dropdown');
        radiusdropdown.querySelectorAll('option').forEach(option => {
          if (option.textContent.trim().endsWith('mi')) {
            const newOptionText = option.textContent.replace(/mi\b/g, 'miles'); // Replace 'mi' with 'miles' if it is at the end of the option string
            option.textContent = newOptionText;
          }
        });
      });
    })(fUtil);
  </script>
  <?php
}, 100);