Issue #3275666 by alexverb: Bootstrap 5 sr-only replaced by visually-hidden

  {% if links %}

    <button type="button" class="btn btn-sm btn-outline-dark dropdown-toggle {{ split ? 'dropdown-toggle-split' }}" data-bs-toggle="dropdown">

      {% if split %}

        <span class="sr-only">{{ 'Toggle Dropdown'|t }}</span>

        <span class="visually-hidden">{{ 'Toggle Dropdown'|t }}</span>

      {% else %}

        {{ button }}

      {% endif %}