Feature Request / Bug: Handle products with multiple component-specific Nutri-Scores on the product page

[SlavenDj]

Current behavior

In the OpenFoodFacts app, the Nutri-Score is displayed for products that have it. However, some products (especially baked goods, pastries, etc.) have a single label that shows different Nutri-Scores for different components of the product.

Example:

• Product: Kirsch-Plunder Kombi - Chef Select
• The packaging shows:
  • D for the cherry fruit filling (Sauerkirschefruchtfüllung)
  • E for the dough/pastry (Teig)

The app currently only displays one Nutri-Score (or none), and does not properly represent this multi-score situation that is increasingly common on European packaging.

Expected behavior

1. Detect when a product has multiple component-specific Nutri-Scores.
2. Display them clearly on the product page, for example:
   • Nutri-Score: D (cherry filling) / E (dough)
   • Or show the full label image if available.
   • Possibly allow users to see the overall score (if one exists) and the component breakdown.
3. Store this information properly in the database (perhaps in a new field like nutriscore_components or similar).

Additional context

• This is becoming more common with the Nutri-Score 2023+ updates and for composite foods.
• The official Nutri-Score rules sometimes allow/require component scoring.

Proposed solution (optional)

• Extend the Nutri-Score display widget to support multiple values.
• Add a small info icon that explains the different scores when tapped.

[monsieurtanuki]

Hi @SlavenDj!
I've never seen that Nutri-Score tap dancing so far.
What we show in the app is what the server provides: the Nutri-Score computed from the category and the nutritional facts.