fix(apis_relations): edit button appearance

Style edit button in relations tables consistent
with edit button in list view (colour, title).

apis_core/apis_relations/templates/apis_relations/edit_button_generic_ajax_form.html

@@ -1,5 +1,8 @@
 {# djlint:off #}
-<a href="#" class='reledit' onclick=GetFormAjax(null,"{% if record.relation_pk %}{{ record.relation_pk }}{% else %}{{ record.pk }}{% endif %}")>
+<a href="#"
+   class="reledit text-warning"
+   title="edit"
+   onclick=GetFormAjax(null,"{% if record.relation_pk %}{{ record.relation_pk }}{% else %}{{ record.pk }}{% endif %}")>
 {# djlint:on #}
 <span class="material-symbols-outlined">edit</span>
 </a>