Можно сделать вообще очень просто,
<li class="page-item">
<a data-request="onSearchCompanies" data-request-data="'search_phrase': '{{search_phrase}}', 'page': '{{companies.currentPage-1}}'" href="javascript:;" data-href="{{ this.page.baseFileName|page({ page: (companies.currentPage-1) }) }}" class="page-link" aria-label="{{ 'Previous'|_ }}">
<span aria-hidden="true">«</span>
<span class="sr-only">{{ 'Previous'|_ }}</span>
</a>
</li>