Fixing scenario where false unavailable items are show on ReviewBlock

[wender]

What does this PR do?

Fixes seller resolution in ReviewBlock during refId validation (Copy/Paste and Upload flows).

Problem: After skuFromRefIds, seller data was taken from mappedRefId, which was only filled for items found in the autocomplete restriction check. When an item was missing from that map, the UI got:

• empty rowData.sellers → no seller dropdown even when the API returned multiple sellers
• empty sellerWithStock → false "Restricted Item" even when stock existed on another seller

This showed up in stores with multiple sellers per SKU (e.g. default seller "1" without stock + marketplace seller "cromosolsc1" with stock on sales channel 4).

Solution:

• Build seller data from the skuFromRefIds API response (refIdApiMap)
• Auto-select the first seller with available or partiallyAvailable stock
• Use that seller for vtexSku, unitMultiplier, and availableQuantity
• Remove unused setRestriction / checkRestriction autocomplete logic that fed the broken mappedRefId flow

---

How to test it?

Workspace

Example: RefId 1006 → SKU 12250, sellers "1" (withoutStock) and "cromosolsc1" (available).

1. Open Quick Order and paste/upload a line with the refId (e.g. 1006,1).
2. Wait for validation to finish.
3. Expected:
   • Status is Valid (not "Restricted Item")
   • Seller column shows a dropdown with both sellers (seller without stock excluded from options)
   • Default selection is the seller with stock (cromosolsc1 / CROMOSOL)
4. Change seller in the dropdown and confirm status/quantity update for the selected seller.
5. Regression: single-seller SKU still shows the seller name (no dropdown) and validates correctly.
6. Regression: refId not found → SKU not found; SKU with no available sellers → Without stock.

Optional: In devtools, confirm skuFromRefIds returns multiple sellers and the review row has sellers.length > 1 and a resolved seller.

Screenshots

Before:

After:

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