fix(draft-order, medusa, types): ui polish (#13376)

**What**
- ensure unique promotion changes are displayed in the activity section
- check linked promotions by id and not code
- list promotions - add id param
- make address payload fields nullish
- Add items view UI tweaks

---

CLOSES SUP-2400

packages/plugins/draft-order/src/admin/lib/schemas/address.ts

@@ -5,10 +5,10 @@ export const addressSchema = z.object({
   first_name: z.string().min(1),
   last_name: z.string().min(1),
   address_1: z.string().min(1),
-  address_2: z.string().optional(),
-  company: z.string().optional(),
+  address_2: z.string().nullish(),
+  company: z.string().nullish(),
   city: z.string().min(1),
-  province: z.string().optional(),
+  province: z.string().nullish(),
   postal_code: z.string().min(1),
-  phone: z.string().optional(),
+  phone: z.string().nullish(),
 })