Fix sorting in admin panel for Intuitive Custom Posts Order plugin

<?php

// Temporary fix for Intuitive Custom Posts Order plugin
add_action( 'admin_init', 'arts_hicpo_fix_capabilities' );
function arts_hicpo_fix_capabilities() {
  $administrator = get_role( 'administrator' );
  if ( $administrator ) {
    $administrator->add_cap( 'hicpo_load_script_css' );
  }

  $editor = get_role( 'editor' );
  if ( $editor ) {
    $editor->add_cap( 'hicpo_load_script_css' );
  }
}