Original PR description

Improved translations for Spanish Latin American language for some terms in MX localization

task-4938338
target: 17.0 -> master

Original PR description

**Issue description:**
When creating a UBL credit note, a line with a zero unit price and a negative quantity would have its gross unit price calculated as `0.0 / <negative_qty>`. This results in a negative zero `-0.0`, which is considered an invalid negative net price by some EDI validators (e.g., Romanian CIUS-RO), causing the file to be rejected.

**Steps to reproduce:**
1. Create a Sales Order with two lines: one product for €100 and a second (e.g., a delivery service) for €0.
2. Create and pay a downpayment invoice for a fixed amount greater than the order total, e.g., €200.
3. Go back to the Sales Order and create a "Regular Invoice". This will generate a credit note with negative quantities on the lines.
4. Ensure the journal is configured for UBL export (e.g., CIUS-RO).
5. Post, then send the credit note and inspect the generated XML file. The zero-priced line will show `cbc:PriceAmount = '-0.0'`.

opw-5000314