.meu-estilo .ebpg-category-filter-list-item[data-ebpgcategory="all"]::before {
    content: "Todas as Categorias - "; /* Novo texto */
}
.ebpg-category-filter-list-item[data-ebpgcategory="all"] {
    color: transparent; /* Esconde o texto original */
    position: relative;
}