chore: Moved Breadcrumbs to design system and added stories

Approved-by: Bianca Widstam

packages/design-system/lib/components/Breadcrumbs/utils.ts

@@ -0,0 +1,12 @@
+import type { Breadcrumb } from "./types"
+
+function splitBreadcrumbs(
+  breadcrumbs: Breadcrumb[]
+): [Breadcrumb, Breadcrumb[], Breadcrumb] {
+  const copy = breadcrumbs.slice(0)
+  const first = copy.shift()!
+  const last = copy.pop()!
+  return [first, copy, last]
+}
+
+export { splitBreadcrumbs }