Rename "Aha! score" to "product value" during mapping

Using ADO for product engineering, wanted to map "product value" to ADO. Didn't find it in the mappings field.
Because it was listed as "Aha! score". Could confirm it by testing. We are using default terminology.

Little, but it removes confusion.

Use the same label in the mapping as displayed in the default terminology in the epic layout.
its also fine to rename product value to Aha! score in the epic layout. just so the field in the layout and in the integration mapping are the same.