fix: correct import path for Breadcrumb component in navigation-items.ts

Author: sarahbrng

showcases/vue-showcase/src/utils/navigation-items.ts

@@ -4,7 +4,7 @@ import AccordionItem from '../components/accordion-item/AccordionItem.vue';
 import Accordion from '../components/accordion/Accordion.vue';
 import Badge from '../components/badge/Badge.vue';
 import Brand from '../components/brand/Brand.vue';
-import Breadcrumb from '../components/breadcrumb/Breadcrumb.vue';
+import Breadcrumb from '../components/breadcrumb/breadcrumb.vue';
 import Button from '../components/button/Button.vue';
 import Card from '../components/card/Card.vue';
 import Checkbox from '../components/checkbox/Checkbox.vue';