fix font for breadcrumb labels in mobile nav

src/components/navigation/menu-mobile-breadcrumb/menu-mobile-breadcrumb.scss

@@ -4,6 +4,7 @@
   border: 0 none;
   cursor: pointer;
   display: flex;
+  font-family: var(--main-font-family);
   margin: 0 0 24px 16px;
   padding: 0;
   text-decoration: none;