fix(dashboard): edit promotion campaign w/wo currrency (#13404)

**What**
- a promotion couldn't be added to a campaign without a currency budget (on promotion details screen)
- fix fetching campaigns pagination issue
- move select to Combobox
- fix currency restriction and move warning description to the label hint

.changeset/blue-hounds-unite.md

@@ -0,0 +1,5 @@
+---
+"@medusajs/dashboard": patch
+---
+
+fix(dashboard): add campaign without currency to promotion