fix(core-flows, dashboard): reservation recreation on fulfilment cancel + allocation button display (#12447)

**What**
- fix recreation of reservations on fulfilment cancel
- fix allocate items button display

---

CLOSES CMRC-1018

.changeset/orange-boats-rescue.md

@@ -0,0 +1,5 @@
+---
+"@medusajs/dashboard": patch
+---
+
+fix(dashboard, core-flows): allocation button condition and reservation recreation on fulfilment cancel