<style>
  @media screen and (max-width: 2299px) and (min-width: 1600px) {

    #the-list {
      display: flex;
      flex-wrap: wrap;
    }
    .plugin-card {
      margin: 8px !important;
      width: calc(50% - 4px - 16px)!important;
    }
  }
</style>

<div class="wrap" style="
     position: relative;
     margin: 25px 40px 0 20px;
     max-width: 1200px;"> 
  <form id="plugin-filter" method="post" class="importer-item">
    <?php $wp_list_table->display(); ?>
  </form>
</div>